| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; RUN: opt -S -loop-predication -loop-predication-predicate-widenable-branches-to-deopt=true < %s 2>&1 | FileCheck %s |
| ; RUN: opt -S -passes='require<scalar-evolution>,loop(loop-predication)' -loop-predication-predicate-widenable-branches-to-deopt=true < %s 2>&1 | FileCheck %s |
| |
| declare void @llvm.experimental.guard(i1, ...) |
| |
| define i32 @unsigned_loop_0_to_n_ult_check(i32* %array, i32 %length, i32 %n) { |
| ; CHECK-LABEL: @unsigned_loop_0_to_n_ult_check( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[TMP5:%.*]] = icmp eq i32 [[N:%.*]], 0 |
| ; CHECK-NEXT: br i1 [[TMP5]], label [[EXIT:%.*]], label [[LOOP_PREHEADER:%.*]] |
| ; CHECK: loop.preheader: |
| ; CHECK-NEXT: [[TMP0:%.*]] = icmp ule i32 [[N]], [[LENGTH:%.*]] |
| ; CHECK-NEXT: [[TMP1:%.*]] = icmp ult i32 0, [[LENGTH]] |
| ; CHECK-NEXT: [[TMP2:%.*]] = and i1 [[TMP1]], [[TMP0]] |
| ; CHECK-NEXT: br label [[LOOP:%.*]] |
| ; CHECK: loop: |
| ; CHECK-NEXT: [[LOOP_ACC:%.*]] = phi i32 [ [[LOOP_ACC_NEXT:%.*]], [[GUARDED:%.*]] ], [ 0, [[LOOP_PREHEADER]] ] |
| ; CHECK-NEXT: [[I:%.*]] = phi i32 [ [[I_NEXT:%.*]], [[GUARDED]] ], [ 0, [[LOOP_PREHEADER]] ] |
| ; CHECK-NEXT: [[WITHIN_BOUNDS:%.*]] = icmp ult i32 [[I]], [[LENGTH]] |
| ; CHECK-NEXT: [[WIDENABLE_COND:%.*]] = call i1 @llvm.experimental.widenable.condition() |
| ; CHECK-NEXT: [[EXIPLICIT_GUARD_COND:%.*]] = and i1 [[WITHIN_BOUNDS]], [[WIDENABLE_COND]] |
| ; CHECK-NEXT: [[TMP3:%.*]] = and i1 [[TMP2]], [[WIDENABLE_COND]] |
| ; CHECK-NEXT: br i1 [[TMP3]], label [[GUARDED]], label [[DEOPT:%.*]], !prof !0 |
| ; |
| entry: |
| %tmp5 = icmp eq i32 %n, 0 |
| br i1 %tmp5, label %exit, label %loop.preheader |
| |
| loop.preheader: ; preds = %entry |
| br label %loop |
| |
| loop: ; preds = %guarded, %loop.preheader |
| %loop.acc = phi i32 [ %loop.acc.next, %guarded ], [ 0, %loop.preheader ] |
| %i = phi i32 [ %i.next, %guarded ], [ 0, %loop.preheader ] |
| %within.bounds = icmp ult i32 %i, %length |
| %widenable_cond = call i1 @llvm.experimental.widenable.condition() |
| %exiplicit_guard_cond = and i1 %within.bounds, %widenable_cond |
| br i1 %exiplicit_guard_cond, label %guarded, label %deopt, !prof !0 |
| |
| deopt: ; preds = %loop |
| %deoptcall = call i32 (...) @llvm.experimental.deoptimize.i32(i32 9) [ "deopt"() ] |
| ret i32 %deoptcall |
| |
| guarded: ; preds = %loop |
| %i.i64 = zext i32 %i to i64 |
| %array.i.ptr = getelementptr inbounds i32, i32* %array, i64 %i.i64 |
| %array.i = load i32, i32* %array.i.ptr, align 4 |
| %loop.acc.next = add i32 %loop.acc, %array.i |
| %i.next = add nuw i32 %i, 1 |
| %continue = icmp ult i32 %i.next, %n |
| br i1 %continue, label %loop, label %exit |
| |
| exit: ; preds = %guarded, %entry |
| %result = phi i32 [ 0, %entry ], [ %loop.acc.next, %guarded ] |
| ret i32 %result |
| } |
| |
| define i32 @unsigned_loop_0_to_n_ule_latch_ult_check(i32* %array, i32 %length, i32 %n) { |
| ; CHECK-LABEL: @unsigned_loop_0_to_n_ule_latch_ult_check( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[TMP5:%.*]] = icmp eq i32 [[N:%.*]], 0 |
| ; CHECK-NEXT: br i1 [[TMP5]], label [[EXIT:%.*]], label [[LOOP_PREHEADER:%.*]] |
| ; CHECK: loop.preheader: |
| ; CHECK-NEXT: [[TMP0:%.*]] = icmp ult i32 [[N]], [[LENGTH:%.*]] |
| ; CHECK-NEXT: [[TMP1:%.*]] = icmp ult i32 0, [[LENGTH]] |
| ; CHECK-NEXT: [[TMP2:%.*]] = and i1 [[TMP1]], [[TMP0]] |
| ; CHECK-NEXT: br label [[LOOP:%.*]] |
| ; CHECK: loop: |
| ; CHECK-NEXT: [[LOOP_ACC:%.*]] = phi i32 [ [[LOOP_ACC_NEXT:%.*]], [[GUARDED:%.*]] ], [ 0, [[LOOP_PREHEADER]] ] |
| ; CHECK-NEXT: [[I:%.*]] = phi i32 [ [[I_NEXT:%.*]], [[GUARDED]] ], [ 0, [[LOOP_PREHEADER]] ] |
| ; CHECK-NEXT: [[WITHIN_BOUNDS:%.*]] = icmp ult i32 [[I]], [[LENGTH]] |
| ; CHECK-NEXT: [[WIDENABLE_COND:%.*]] = call i1 @llvm.experimental.widenable.condition() |
| ; CHECK-NEXT: [[EXIPLICIT_GUARD_COND:%.*]] = and i1 [[WITHIN_BOUNDS]], [[WIDENABLE_COND]] |
| ; CHECK-NEXT: [[TMP3:%.*]] = and i1 [[TMP2]], [[WIDENABLE_COND]] |
| ; CHECK-NEXT: br i1 [[TMP3]], label [[GUARDED]], label [[DEOPT:%.*]], !prof !0 |
| ; |
| entry: |
| %tmp5 = icmp eq i32 %n, 0 |
| br i1 %tmp5, label %exit, label %loop.preheader |
| |
| loop.preheader: ; preds = %entry |
| br label %loop |
| |
| loop: ; preds = %guarded, %loop.preheader |
| %loop.acc = phi i32 [ %loop.acc.next, %guarded ], [ 0, %loop.preheader ] |
| %i = phi i32 [ %i.next, %guarded ], [ 0, %loop.preheader ] |
| %within.bounds = icmp ult i32 %i, %length |
| %widenable_cond = call i1 @llvm.experimental.widenable.condition() |
| %exiplicit_guard_cond = and i1 %within.bounds, %widenable_cond |
| br i1 %exiplicit_guard_cond, label %guarded, label %deopt, !prof !0 |
| |
| deopt: ; preds = %loop |
| %deoptcall = call i32 (...) @llvm.experimental.deoptimize.i32(i32 9) [ "deopt"() ] |
| ret i32 %deoptcall |
| |
| guarded: ; preds = %loop |
| %i.i64 = zext i32 %i to i64 |
| %array.i.ptr = getelementptr inbounds i32, i32* %array, i64 %i.i64 |
| %array.i = load i32, i32* %array.i.ptr, align 4 |
| %loop.acc.next = add i32 %loop.acc, %array.i |
| %i.next = add nuw i32 %i, 1 |
| %continue = icmp ule i32 %i.next, %n |
| br i1 %continue, label %loop, label %exit |
| |
| exit: ; preds = %guarded, %entry |
| %result = phi i32 [ 0, %entry ], [ %loop.acc.next, %guarded ] |
| ret i32 %result |
| } |
| |
| define i32 @unsigned_loop_0_to_n_ugt_check(i32* %array, i32 %length, i32 %n) { |
| ; CHECK-LABEL: @unsigned_loop_0_to_n_ugt_check( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[TMP5:%.*]] = icmp eq i32 [[N:%.*]], 0 |
| ; CHECK-NEXT: br i1 [[TMP5]], label [[EXIT:%.*]], label [[LOOP_PREHEADER:%.*]] |
| ; CHECK: loop.preheader: |
| ; CHECK-NEXT: [[TMP0:%.*]] = icmp ule i32 [[N]], [[LENGTH:%.*]] |
| ; CHECK-NEXT: [[TMP1:%.*]] = icmp ult i32 0, [[LENGTH]] |
| ; CHECK-NEXT: [[TMP2:%.*]] = and i1 [[TMP1]], [[TMP0]] |
| ; CHECK-NEXT: br label [[LOOP:%.*]] |
| ; CHECK: loop: |
| ; CHECK-NEXT: [[LOOP_ACC:%.*]] = phi i32 [ [[LOOP_ACC_NEXT:%.*]], [[GUARDED:%.*]] ], [ 0, [[LOOP_PREHEADER]] ] |
| ; CHECK-NEXT: [[I:%.*]] = phi i32 [ [[I_NEXT:%.*]], [[GUARDED]] ], [ 0, [[LOOP_PREHEADER]] ] |
| ; CHECK-NEXT: [[WITHIN_BOUNDS:%.*]] = icmp ugt i32 [[LENGTH]], [[I]] |
| ; CHECK-NEXT: [[WIDENABLE_COND:%.*]] = call i1 @llvm.experimental.widenable.condition() |
| ; CHECK-NEXT: [[EXIPLICIT_GUARD_COND:%.*]] = and i1 [[WITHIN_BOUNDS]], [[WIDENABLE_COND]] |
| ; CHECK-NEXT: [[TMP3:%.*]] = and i1 [[TMP2]], [[WIDENABLE_COND]] |
| ; CHECK-NEXT: br i1 [[TMP3]], label [[GUARDED]], label [[DEOPT:%.*]], !prof !0 |
| ; |
| entry: |
| %tmp5 = icmp eq i32 %n, 0 |
| br i1 %tmp5, label %exit, label %loop.preheader |
| |
| loop.preheader: ; preds = %entry |
| br label %loop |
| |
| loop: ; preds = %guarded, %loop.preheader |
| %loop.acc = phi i32 [ %loop.acc.next, %guarded ], [ 0, %loop.preheader ] |
| %i = phi i32 [ %i.next, %guarded ], [ 0, %loop.preheader ] |
| %within.bounds = icmp ugt i32 %length, %i |
| %widenable_cond = call i1 @llvm.experimental.widenable.condition() |
| %exiplicit_guard_cond = and i1 %within.bounds, %widenable_cond |
| br i1 %exiplicit_guard_cond, label %guarded, label %deopt, !prof !0 |
| |
| deopt: ; preds = %loop |
| %deoptcall = call i32 (...) @llvm.experimental.deoptimize.i32(i32 9) [ "deopt"() ] |
| ret i32 %deoptcall |
| |
| guarded: ; preds = %loop |
| %i.i64 = zext i32 %i to i64 |
| %array.i.ptr = getelementptr inbounds i32, i32* %array, i64 %i.i64 |
| %array.i = load i32, i32* %array.i.ptr, align 4 |
| %loop.acc.next = add i32 %loop.acc, %array.i |
| %i.next = add nuw i32 %i, 1 |
| %continue = icmp ult i32 %i.next, %n |
| br i1 %continue, label %loop, label %exit |
| |
| exit: ; preds = %guarded, %entry |
| %result = phi i32 [ 0, %entry ], [ %loop.acc.next, %guarded ] |
| ret i32 %result |
| } |
| |
| define i32 @signed_loop_0_to_n_ult_check(i32* %array, i32 %length, i32 %n) { |
| ; CHECK-LABEL: @signed_loop_0_to_n_ult_check( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[TMP5:%.*]] = icmp sle i32 [[N:%.*]], 0 |
| ; CHECK-NEXT: br i1 [[TMP5]], label [[EXIT:%.*]], label [[LOOP_PREHEADER:%.*]] |
| ; CHECK: loop.preheader: |
| ; CHECK-NEXT: [[TMP0:%.*]] = icmp sle i32 [[N]], [[LENGTH:%.*]] |
| ; CHECK-NEXT: [[TMP1:%.*]] = icmp ult i32 0, [[LENGTH]] |
| ; CHECK-NEXT: [[TMP2:%.*]] = and i1 [[TMP1]], [[TMP0]] |
| ; CHECK-NEXT: br label [[LOOP:%.*]] |
| ; CHECK: loop: |
| ; CHECK-NEXT: [[LOOP_ACC:%.*]] = phi i32 [ [[LOOP_ACC_NEXT:%.*]], [[GUARDED:%.*]] ], [ 0, [[LOOP_PREHEADER]] ] |
| ; CHECK-NEXT: [[I:%.*]] = phi i32 [ [[I_NEXT:%.*]], [[GUARDED]] ], [ 0, [[LOOP_PREHEADER]] ] |
| ; CHECK-NEXT: [[WITHIN_BOUNDS:%.*]] = icmp ult i32 [[I]], [[LENGTH]] |
| ; CHECK-NEXT: [[WIDENABLE_COND:%.*]] = call i1 @llvm.experimental.widenable.condition() |
| ; CHECK-NEXT: [[EXIPLICIT_GUARD_COND:%.*]] = and i1 [[WITHIN_BOUNDS]], [[WIDENABLE_COND]] |
| ; CHECK-NEXT: [[TMP3:%.*]] = and i1 [[TMP2]], [[WIDENABLE_COND]] |
| ; CHECK-NEXT: br i1 [[TMP3]], label [[GUARDED]], label [[DEOPT:%.*]], !prof !0 |
| |
| ; |
| entry: |
| %tmp5 = icmp sle i32 %n, 0 |
| br i1 %tmp5, label %exit, label %loop.preheader |
| |
| loop.preheader: ; preds = %entry |
| br label %loop |
| |
| loop: ; preds = %guarded, %loop.preheader |
| %loop.acc = phi i32 [ %loop.acc.next, %guarded ], [ 0, %loop.preheader ] |
| %i = phi i32 [ %i.next, %guarded ], [ 0, %loop.preheader ] |
| %within.bounds = icmp ult i32 %i, %length |
| %widenable_cond = call i1 @llvm.experimental.widenable.condition() |
| %exiplicit_guard_cond = and i1 %within.bounds, %widenable_cond |
| br i1 %exiplicit_guard_cond, label %guarded, label %deopt, !prof !0 |
| |
| deopt: ; preds = %loop |
| %deoptcall = call i32 (...) @llvm.experimental.deoptimize.i32(i32 9) [ "deopt"() ] |
| ret i32 %deoptcall |
| |
| guarded: ; preds = %loop |
| %i.i64 = zext i32 %i to i64 |
| %array.i.ptr = getelementptr inbounds i32, i32* %array, i64 %i.i64 |
| %array.i = load i32, i32* %array.i.ptr, align 4 |
| %loop.acc.next = add i32 %loop.acc, %array.i |
| %i.next = add nuw i32 %i, 1 |
| %continue = icmp slt i32 %i.next, %n |
| br i1 %continue, label %loop, label %exit |
| |
| exit: ; preds = %guarded, %entry |
| %result = phi i32 [ 0, %entry ], [ %loop.acc.next, %guarded ] |
| ret i32 %result |
| } |
| |
| define i32 @signed_loop_0_to_n_ult_check_length_range_known(i32* %array, i32* %length.ptr, i32 %n) { |
| ; CHECK-LABEL: @signed_loop_0_to_n_ult_check_length_range_known( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[TMP5:%.*]] = icmp sle i32 [[N:%.*]], 0 |
| ; CHECK-NEXT: [[LENGTH:%.*]] = load i32, i32* [[LENGTH_PTR:%.*]], !range !1 |
| ; CHECK-NEXT: br i1 [[TMP5]], label [[EXIT:%.*]], label [[LOOP_PREHEADER:%.*]] |
| ; CHECK: loop.preheader: |
| ; CHECK-NEXT: [[TMP0:%.*]] = icmp sle i32 [[N]], [[LENGTH]] |
| ; CHECK-NEXT: [[TMP1:%.*]] = and i1 true, [[TMP0]] |
| ; CHECK-NEXT: br label [[LOOP:%.*]] |
| ; CHECK: loop: |
| ; CHECK-NEXT: [[LOOP_ACC:%.*]] = phi i32 [ [[LOOP_ACC_NEXT:%.*]], [[GUARDED:%.*]] ], [ 0, [[LOOP_PREHEADER]] ] |
| ; CHECK-NEXT: [[I:%.*]] = phi i32 [ [[I_NEXT:%.*]], [[GUARDED]] ], [ 0, [[LOOP_PREHEADER]] ] |
| ; CHECK-NEXT: [[WITHIN_BOUNDS:%.*]] = icmp ult i32 [[I]], [[LENGTH]] |
| ; CHECK-NEXT: [[WIDENABLE_COND:%.*]] = call i1 @llvm.experimental.widenable.condition() |
| ; CHECK-NEXT: [[EXIPLICIT_GUARD_COND:%.*]] = and i1 [[WITHIN_BOUNDS]], [[WIDENABLE_COND]] |
| ; CHECK-NEXT: [[TMP2:%.*]] = and i1 [[TMP1]], [[WIDENABLE_COND]] |
| ; CHECK-NEXT: br i1 [[TMP2]], label [[GUARDED]], label [[DEOPT:%.*]], !prof !0 |
| ; |
| entry: |
| %tmp5 = icmp sle i32 %n, 0 |
| %length = load i32, i32* %length.ptr, !range !1 |
| br i1 %tmp5, label %exit, label %loop.preheader |
| |
| loop.preheader: ; preds = %entry |
| br label %loop |
| |
| loop: ; preds = %guarded, %loop.preheader |
| %loop.acc = phi i32 [ %loop.acc.next, %guarded ], [ 0, %loop.preheader ] |
| %i = phi i32 [ %i.next, %guarded ], [ 0, %loop.preheader ] |
| %within.bounds = icmp ult i32 %i, %length |
| %widenable_cond = call i1 @llvm.experimental.widenable.condition() |
| %exiplicit_guard_cond = and i1 %within.bounds, %widenable_cond |
| br i1 %exiplicit_guard_cond, label %guarded, label %deopt, !prof !0 |
| |
| deopt: ; preds = %loop |
| %deoptcall = call i32 (...) @llvm.experimental.deoptimize.i32(i32 9) [ "deopt"() ] |
| ret i32 %deoptcall |
| |
| guarded: ; preds = %loop |
| %i.i64 = zext i32 %i to i64 |
| %array.i.ptr = getelementptr inbounds i32, i32* %array, i64 %i.i64 |
| %array.i = load i32, i32* %array.i.ptr, align 4 |
| %loop.acc.next = add i32 %loop.acc, %array.i |
| %i.next = add nuw i32 %i, 1 |
| %continue = icmp slt i32 %i.next, %n |
| br i1 %continue, label %loop, label %exit |
| |
| exit: ; preds = %guarded, %entry |
| %result = phi i32 [ 0, %entry ], [ %loop.acc.next, %guarded ] |
| ret i32 %result |
| } |
| |
| define i32 @signed_loop_0_to_n_inverse_latch_predicate(i32* %array, i32 %length, i32 %n) { |
| ; CHECK-LABEL: @signed_loop_0_to_n_inverse_latch_predicate( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[TMP5:%.*]] = icmp sle i32 [[N:%.*]], 0 |
| ; CHECK-NEXT: br i1 [[TMP5]], label [[EXIT:%.*]], label [[LOOP_PREHEADER:%.*]] |
| ; CHECK: loop.preheader: |
| ; CHECK-NEXT: [[TMP0:%.*]] = icmp slt i32 [[N]], [[LENGTH:%.*]] |
| ; CHECK-NEXT: [[TMP1:%.*]] = icmp ult i32 0, [[LENGTH]] |
| ; CHECK-NEXT: [[TMP2:%.*]] = and i1 [[TMP1]], [[TMP0]] |
| ; CHECK-NEXT: br label [[LOOP:%.*]] |
| ; CHECK: loop: |
| ; CHECK-NEXT: [[LOOP_ACC:%.*]] = phi i32 [ [[LOOP_ACC_NEXT:%.*]], [[GUARDED:%.*]] ], [ 0, [[LOOP_PREHEADER]] ] |
| ; CHECK-NEXT: [[I:%.*]] = phi i32 [ [[I_NEXT:%.*]], [[GUARDED]] ], [ 0, [[LOOP_PREHEADER]] ] |
| ; CHECK-NEXT: [[WITHIN_BOUNDS:%.*]] = icmp ult i32 [[I]], [[LENGTH]] |
| ; CHECK-NEXT: [[WIDENABLE_COND:%.*]] = call i1 @llvm.experimental.widenable.condition() |
| ; CHECK-NEXT: [[EXIPLICIT_GUARD_COND:%.*]] = and i1 [[WITHIN_BOUNDS]], [[WIDENABLE_COND]] |
| ; CHECK-NEXT: [[TMP3:%.*]] = and i1 [[TMP2]], [[WIDENABLE_COND]] |
| ; CHECK-NEXT: br i1 [[TMP3]], label [[GUARDED]], label [[DEOPT:%.*]], !prof !0 |
| ; |
| entry: |
| %tmp5 = icmp sle i32 %n, 0 |
| br i1 %tmp5, label %exit, label %loop.preheader |
| |
| loop.preheader: ; preds = %entry |
| br label %loop |
| |
| loop: ; preds = %guarded, %loop.preheader |
| %loop.acc = phi i32 [ %loop.acc.next, %guarded ], [ 0, %loop.preheader ] |
| %i = phi i32 [ %i.next, %guarded ], [ 0, %loop.preheader ] |
| %within.bounds = icmp ult i32 %i, %length |
| %widenable_cond = call i1 @llvm.experimental.widenable.condition() |
| %exiplicit_guard_cond = and i1 %within.bounds, %widenable_cond |
| br i1 %exiplicit_guard_cond, label %guarded, label %deopt, !prof !0 |
| |
| deopt: ; preds = %loop |
| %deoptcall = call i32 (...) @llvm.experimental.deoptimize.i32(i32 9) [ "deopt"() ] |
| ret i32 %deoptcall |
| |
| guarded: ; preds = %loop |
| %i.i64 = zext i32 %i to i64 |
| %array.i.ptr = getelementptr inbounds i32, i32* %array, i64 %i.i64 |
| %array.i = load i32, i32* %array.i.ptr, align 4 |
| %loop.acc.next = add i32 %loop.acc, %array.i |
| %i.next = add nuw i32 %i, 1 |
| %continue = icmp sgt i32 %i.next, %n |
| br i1 %continue, label %exit, label %loop |
| |
| exit: ; preds = %guarded, %entry |
| %result = phi i32 [ 0, %entry ], [ %loop.acc.next, %guarded ] |
| ret i32 %result |
| } |
| |
| define i32 @signed_loop_0_to_n_sle_latch_ult_check(i32* %array, i32 %length, i32 %n) { |
| ; CHECK-LABEL: @signed_loop_0_to_n_sle_latch_ult_check( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[TMP5:%.*]] = icmp sle i32 [[N:%.*]], 0 |
| ; CHECK-NEXT: br i1 [[TMP5]], label [[EXIT:%.*]], label [[LOOP_PREHEADER:%.*]] |
| ; CHECK: loop.preheader: |
| ; CHECK-NEXT: [[TMP0:%.*]] = icmp slt i32 [[N]], [[LENGTH:%.*]] |
| ; CHECK-NEXT: [[TMP1:%.*]] = icmp ult i32 0, [[LENGTH]] |
| ; CHECK-NEXT: [[TMP2:%.*]] = and i1 [[TMP1]], [[TMP0]] |
| ; CHECK-NEXT: br label [[LOOP:%.*]] |
| ; CHECK: loop: |
| ; CHECK-NEXT: [[LOOP_ACC:%.*]] = phi i32 [ [[LOOP_ACC_NEXT:%.*]], [[GUARDED:%.*]] ], [ 0, [[LOOP_PREHEADER]] ] |
| ; CHECK-NEXT: [[I:%.*]] = phi i32 [ [[I_NEXT:%.*]], [[GUARDED]] ], [ 0, [[LOOP_PREHEADER]] ] |
| ; CHECK-NEXT: [[WITHIN_BOUNDS:%.*]] = icmp ult i32 [[I]], [[LENGTH]] |
| ; CHECK-NEXT: [[WIDENABLE_COND:%.*]] = call i1 @llvm.experimental.widenable.condition() |
| ; CHECK-NEXT: [[EXIPLICIT_GUARD_COND:%.*]] = and i1 [[WITHIN_BOUNDS]], [[WIDENABLE_COND]] |
| ; CHECK-NEXT: [[TMP3:%.*]] = and i1 [[TMP2]], [[WIDENABLE_COND]] |
| ; CHECK-NEXT: br i1 [[TMP3]], label [[GUARDED]], label [[DEOPT:%.*]], !prof !0 |
| ; |
| entry: |
| %tmp5 = icmp sle i32 %n, 0 |
| br i1 %tmp5, label %exit, label %loop.preheader |
| |
| loop.preheader: ; preds = %entry |
| br label %loop |
| |
| loop: ; preds = %guarded, %loop.preheader |
| %loop.acc = phi i32 [ %loop.acc.next, %guarded ], [ 0, %loop.preheader ] |
| %i = phi i32 [ %i.next, %guarded ], [ 0, %loop.preheader ] |
| %within.bounds = icmp ult i32 %i, %length |
| %widenable_cond = call i1 @llvm.experimental.widenable.condition() |
| %exiplicit_guard_cond = and i1 %within.bounds, %widenable_cond |
| br i1 %exiplicit_guard_cond, label %guarded, label %deopt, !prof !0 |
| |
| deopt: ; preds = %loop |
| %deoptcall = call i32 (...) @llvm.experimental.deoptimize.i32(i32 9) [ "deopt"() ] |
| ret i32 %deoptcall |
| |
| guarded: ; preds = %loop |
| %i.i64 = zext i32 %i to i64 |
| %array.i.ptr = getelementptr inbounds i32, i32* %array, i64 %i.i64 |
| %array.i = load i32, i32* %array.i.ptr, align 4 |
| %loop.acc.next = add i32 %loop.acc, %array.i |
| %i.next = add nuw i32 %i, 1 |
| %continue = icmp sle i32 %i.next, %n |
| br i1 %continue, label %loop, label %exit |
| |
| exit: ; preds = %guarded, %entry |
| %result = phi i32 [ 0, %entry ], [ %loop.acc.next, %guarded ] |
| ret i32 %result |
| } |
| |
| define i32 @signed_loop_0_to_n_preincrement_latch_check(i32* %array, i32 %length, i32 %n) { |
| ; CHECK-LABEL: @signed_loop_0_to_n_preincrement_latch_check( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[TMP5:%.*]] = icmp sle i32 [[N:%.*]], 0 |
| ; CHECK-NEXT: br i1 [[TMP5]], label [[EXIT:%.*]], label [[LOOP_PREHEADER:%.*]] |
| ; CHECK: loop.preheader: |
| ; CHECK-NEXT: [[TMP0:%.*]] = add i32 [[LENGTH:%.*]], -1 |
| ; CHECK-NEXT: [[TMP1:%.*]] = icmp sle i32 [[N]], [[TMP0]] |
| ; CHECK-NEXT: [[TMP2:%.*]] = icmp ult i32 0, [[LENGTH]] |
| ; CHECK-NEXT: [[TMP3:%.*]] = and i1 [[TMP2]], [[TMP1]] |
| ; CHECK-NEXT: br label [[LOOP:%.*]] |
| ; CHECK: loop: |
| ; CHECK-NEXT: [[LOOP_ACC:%.*]] = phi i32 [ [[LOOP_ACC_NEXT:%.*]], [[GUARDED:%.*]] ], [ 0, [[LOOP_PREHEADER]] ] |
| ; CHECK-NEXT: [[I:%.*]] = phi i32 [ [[I_NEXT:%.*]], [[GUARDED]] ], [ 0, [[LOOP_PREHEADER]] ] |
| ; CHECK-NEXT: [[WITHIN_BOUNDS:%.*]] = icmp ult i32 [[I]], [[LENGTH]] |
| ; CHECK-NEXT: [[WIDENABLE_COND:%.*]] = call i1 @llvm.experimental.widenable.condition() |
| ; CHECK-NEXT: [[EXIPLICIT_GUARD_COND:%.*]] = and i1 [[WITHIN_BOUNDS]], [[WIDENABLE_COND]] |
| ; CHECK-NEXT: [[TMP4:%.*]] = and i1 [[TMP3]], [[WIDENABLE_COND]] |
| ; CHECK-NEXT: br i1 [[TMP4]], label [[GUARDED]], label [[DEOPT:%.*]], !prof !0 |
| ; |
| entry: |
| %tmp5 = icmp sle i32 %n, 0 |
| br i1 %tmp5, label %exit, label %loop.preheader |
| |
| loop.preheader: ; preds = %entry |
| br label %loop |
| |
| loop: ; preds = %guarded, %loop.preheader |
| %loop.acc = phi i32 [ %loop.acc.next, %guarded ], [ 0, %loop.preheader ] |
| %i = phi i32 [ %i.next, %guarded ], [ 0, %loop.preheader ] |
| %within.bounds = icmp ult i32 %i, %length |
| %widenable_cond = call i1 @llvm.experimental.widenable.condition() |
| %exiplicit_guard_cond = and i1 %within.bounds, %widenable_cond |
| br i1 %exiplicit_guard_cond, label %guarded, label %deopt, !prof !0 |
| |
| deopt: ; preds = %loop |
| %deoptcall = call i32 (...) @llvm.experimental.deoptimize.i32(i32 9) [ "deopt"() ] |
| ret i32 %deoptcall |
| |
| guarded: ; preds = %loop |
| %i.i64 = zext i32 %i to i64 |
| %array.i.ptr = getelementptr inbounds i32, i32* %array, i64 %i.i64 |
| %array.i = load i32, i32* %array.i.ptr, align 4 |
| %loop.acc.next = add i32 %loop.acc, %array.i |
| %i.next = add i32 %i, 1 |
| %continue = icmp slt i32 %i, %n |
| br i1 %continue, label %loop, label %exit |
| |
| exit: ; preds = %guarded, %entry |
| %result = phi i32 [ 0, %entry ], [ %loop.acc.next, %guarded ] |
| ret i32 %result |
| } |
| |
| define i32 @signed_loop_0_to_n_preincrement_latch_check_postincrement_guard_check(i32* %array, i32 %length, i32 %n) { |
| ; CHECK-LABEL: @signed_loop_0_to_n_preincrement_latch_check_postincrement_guard_check( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[TMP5:%.*]] = icmp sle i32 [[N:%.*]], 0 |
| ; CHECK-NEXT: br i1 [[TMP5]], label [[EXIT:%.*]], label [[LOOP_PREHEADER:%.*]] |
| ; CHECK: loop.preheader: |
| ; CHECK-NEXT: [[TMP0:%.*]] = add i32 [[LENGTH:%.*]], -2 |
| ; CHECK-NEXT: [[TMP1:%.*]] = icmp sle i32 [[N]], [[TMP0]] |
| ; CHECK-NEXT: [[TMP2:%.*]] = icmp ult i32 1, [[LENGTH]] |
| ; CHECK-NEXT: [[TMP3:%.*]] = and i1 [[TMP2]], [[TMP1]] |
| ; CHECK-NEXT: br label [[LOOP:%.*]] |
| ; CHECK: loop: |
| ; CHECK-NEXT: [[LOOP_ACC:%.*]] = phi i32 [ [[LOOP_ACC_NEXT:%.*]], [[GUARDED:%.*]] ], [ 0, [[LOOP_PREHEADER]] ] |
| ; CHECK-NEXT: [[I:%.*]] = phi i32 [ [[I_NEXT:%.*]], [[GUARDED]] ], [ 0, [[LOOP_PREHEADER]] ] |
| ; CHECK-NEXT: [[I_NEXT]] = add i32 [[I]], 1 |
| ; CHECK-NEXT: [[WITHIN_BOUNDS:%.*]] = icmp ult i32 [[I_NEXT]], [[LENGTH]] |
| ; CHECK-NEXT: [[WIDENABLE_COND:%.*]] = call i1 @llvm.experimental.widenable.condition() |
| ; CHECK-NEXT: [[EXIPLICIT_GUARD_COND:%.*]] = and i1 [[WITHIN_BOUNDS]], [[WIDENABLE_COND]] |
| ; CHECK-NEXT: [[TMP4:%.*]] = and i1 [[TMP3]], [[WIDENABLE_COND]] |
| ; CHECK-NEXT: br i1 [[TMP4]], label [[GUARDED]], label [[DEOPT:%.*]], !prof !0 |
| ; |
| entry: |
| %tmp5 = icmp sle i32 %n, 0 |
| br i1 %tmp5, label %exit, label %loop.preheader |
| |
| loop.preheader: ; preds = %entry |
| br label %loop |
| |
| loop: ; preds = %guarded, %loop.preheader |
| %loop.acc = phi i32 [ %loop.acc.next, %guarded ], [ 0, %loop.preheader ] |
| %i = phi i32 [ %i.next, %guarded ], [ 0, %loop.preheader ] |
| %i.next = add i32 %i, 1 |
| %within.bounds = icmp ult i32 %i.next, %length |
| %widenable_cond = call i1 @llvm.experimental.widenable.condition() |
| %exiplicit_guard_cond = and i1 %within.bounds, %widenable_cond |
| br i1 %exiplicit_guard_cond, label %guarded, label %deopt, !prof !0 |
| |
| deopt: ; preds = %loop |
| %deoptcall = call i32 (...) @llvm.experimental.deoptimize.i32(i32 9) [ "deopt"() ] |
| ret i32 %deoptcall |
| |
| guarded: ; preds = %loop |
| %i.i64 = zext i32 %i to i64 |
| %array.i.ptr = getelementptr inbounds i32, i32* %array, i64 %i.i64 |
| %array.i = load i32, i32* %array.i.ptr, align 4 |
| %loop.acc.next = add i32 %loop.acc, %array.i |
| %continue = icmp slt i32 %i, %n |
| br i1 %continue, label %loop, label %exit |
| |
| exit: ; preds = %guarded, %entry |
| %result = phi i32 [ 0, %entry ], [ %loop.acc.next, %guarded ] |
| ret i32 %result |
| } |
| |
| define i32 @signed_loop_0_to_n_sle_latch_offset_ult_check(i32* %array, i32 %length, i32 %n) { |
| ; CHECK-LABEL: @signed_loop_0_to_n_sle_latch_offset_ult_check( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[TMP5:%.*]] = icmp sle i32 [[N:%.*]], 0 |
| ; CHECK-NEXT: br i1 [[TMP5]], label [[EXIT:%.*]], label [[LOOP_PREHEADER:%.*]] |
| ; CHECK: loop.preheader: |
| ; CHECK-NEXT: [[TMP0:%.*]] = add i32 [[LENGTH:%.*]], -1 |
| ; CHECK-NEXT: [[TMP1:%.*]] = icmp slt i32 [[N]], [[TMP0]] |
| ; CHECK-NEXT: [[TMP2:%.*]] = icmp ult i32 1, [[LENGTH]] |
| ; CHECK-NEXT: [[TMP3:%.*]] = and i1 [[TMP2]], [[TMP1]] |
| ; CHECK-NEXT: br label [[LOOP:%.*]] |
| ; CHECK: loop: |
| ; CHECK-NEXT: [[LOOP_ACC:%.*]] = phi i32 [ [[LOOP_ACC_NEXT:%.*]], [[GUARDED:%.*]] ], [ 0, [[LOOP_PREHEADER]] ] |
| ; CHECK-NEXT: [[I:%.*]] = phi i32 [ [[I_NEXT:%.*]], [[GUARDED]] ], [ 0, [[LOOP_PREHEADER]] ] |
| ; CHECK-NEXT: [[I_OFFSET:%.*]] = add i32 [[I]], 1 |
| ; CHECK-NEXT: [[WITHIN_BOUNDS:%.*]] = icmp ult i32 [[I_OFFSET]], [[LENGTH]] |
| ; CHECK-NEXT: [[WIDENABLE_COND:%.*]] = call i1 @llvm.experimental.widenable.condition() |
| ; CHECK-NEXT: [[EXIPLICIT_GUARD_COND:%.*]] = and i1 [[WITHIN_BOUNDS]], [[WIDENABLE_COND]] |
| ; CHECK-NEXT: [[TMP4:%.*]] = and i1 [[TMP3]], [[WIDENABLE_COND]] |
| ; CHECK-NEXT: br i1 [[TMP4]], label [[GUARDED]], label [[DEOPT:%.*]], !prof !0 |
| ; |
| entry: |
| %tmp5 = icmp sle i32 %n, 0 |
| br i1 %tmp5, label %exit, label %loop.preheader |
| |
| loop.preheader: ; preds = %entry |
| br label %loop |
| |
| loop: ; preds = %guarded, %loop.preheader |
| %loop.acc = phi i32 [ %loop.acc.next, %guarded ], [ 0, %loop.preheader ] |
| %i = phi i32 [ %i.next, %guarded ], [ 0, %loop.preheader ] |
| %i.offset = add i32 %i, 1 |
| %within.bounds = icmp ult i32 %i.offset, %length |
| %widenable_cond = call i1 @llvm.experimental.widenable.condition() |
| %exiplicit_guard_cond = and i1 %within.bounds, %widenable_cond |
| br i1 %exiplicit_guard_cond, label %guarded, label %deopt, !prof !0 |
| |
| deopt: ; preds = %loop |
| %deoptcall = call i32 (...) @llvm.experimental.deoptimize.i32(i32 9) [ "deopt"() ] |
| ret i32 %deoptcall |
| |
| guarded: ; preds = %loop |
| %i.i64 = zext i32 %i to i64 |
| %array.i.ptr = getelementptr inbounds i32, i32* %array, i64 %i.i64 |
| %array.i = load i32, i32* %array.i.ptr, align 4 |
| %loop.acc.next = add i32 %loop.acc, %array.i |
| %i.next = add i32 %i, 1 |
| %continue = icmp sle i32 %i.next, %n |
| br i1 %continue, label %loop, label %exit |
| |
| exit: ; preds = %guarded, %entry |
| %result = phi i32 [ 0, %entry ], [ %loop.acc.next, %guarded ] |
| ret i32 %result |
| } |
| |
| define i32 @signed_loop_0_to_n_offset_sle_latch_offset_ult_check(i32* %array, i32 %length, i32 %n) { |
| ; CHECK-LABEL: @signed_loop_0_to_n_offset_sle_latch_offset_ult_check( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[TMP5:%.*]] = icmp sle i32 [[N:%.*]], 0 |
| ; CHECK-NEXT: br i1 [[TMP5]], label [[EXIT:%.*]], label [[LOOP_PREHEADER:%.*]] |
| ; CHECK: loop.preheader: |
| ; CHECK-NEXT: [[TMP0:%.*]] = icmp slt i32 [[N]], [[LENGTH:%.*]] |
| ; CHECK-NEXT: [[TMP1:%.*]] = icmp ult i32 1, [[LENGTH]] |
| ; CHECK-NEXT: [[TMP2:%.*]] = and i1 [[TMP1]], [[TMP0]] |
| ; CHECK-NEXT: br label [[LOOP:%.*]] |
| ; CHECK: loop: |
| ; CHECK-NEXT: [[LOOP_ACC:%.*]] = phi i32 [ [[LOOP_ACC_NEXT:%.*]], [[GUARDED:%.*]] ], [ 0, [[LOOP_PREHEADER]] ] |
| ; CHECK-NEXT: [[I:%.*]] = phi i32 [ [[I_NEXT:%.*]], [[GUARDED]] ], [ 0, [[LOOP_PREHEADER]] ] |
| ; CHECK-NEXT: [[I_OFFSET:%.*]] = add i32 [[I]], 1 |
| ; CHECK-NEXT: [[WITHIN_BOUNDS:%.*]] = icmp ult i32 [[I_OFFSET]], [[LENGTH]] |
| ; CHECK-NEXT: [[WIDENABLE_COND:%.*]] = call i1 @llvm.experimental.widenable.condition() |
| ; CHECK-NEXT: [[EXIPLICIT_GUARD_COND:%.*]] = and i1 [[WITHIN_BOUNDS]], [[WIDENABLE_COND]] |
| ; CHECK-NEXT: [[TMP3:%.*]] = and i1 [[TMP2]], [[WIDENABLE_COND]] |
| ; CHECK-NEXT: br i1 [[TMP3]], label [[GUARDED]], label [[DEOPT:%.*]], !prof !0 |
| ; |
| entry: |
| %tmp5 = icmp sle i32 %n, 0 |
| br i1 %tmp5, label %exit, label %loop.preheader |
| |
| loop.preheader: ; preds = %entry |
| br label %loop |
| |
| loop: ; preds = %guarded, %loop.preheader |
| %loop.acc = phi i32 [ %loop.acc.next, %guarded ], [ 0, %loop.preheader ] |
| %i = phi i32 [ %i.next, %guarded ], [ 0, %loop.preheader ] |
| %i.offset = add i32 %i, 1 |
| %within.bounds = icmp ult i32 %i.offset, %length |
| %widenable_cond = call i1 @llvm.experimental.widenable.condition() |
| %exiplicit_guard_cond = and i1 %within.bounds, %widenable_cond |
| br i1 %exiplicit_guard_cond, label %guarded, label %deopt, !prof !0 |
| |
| deopt: ; preds = %loop |
| %deoptcall = call i32 (...) @llvm.experimental.deoptimize.i32(i32 9) [ "deopt"() ] |
| ret i32 %deoptcall |
| |
| guarded: ; preds = %loop |
| %i.i64 = zext i32 %i to i64 |
| %array.i.ptr = getelementptr inbounds i32, i32* %array, i64 %i.i64 |
| %array.i = load i32, i32* %array.i.ptr, align 4 |
| %loop.acc.next = add i32 %loop.acc, %array.i |
| %i.next = add i32 %i, 1 |
| %i.next.offset = add i32 %i.next, 1 |
| %continue = icmp sle i32 %i.next.offset, %n |
| br i1 %continue, label %loop, label %exit |
| |
| exit: ; preds = %guarded, %entry |
| %result = phi i32 [ 0, %entry ], [ %loop.acc.next, %guarded ] |
| ret i32 %result |
| } |
| |
| define i32 @unsupported_latch_pred_loop_0_to_n(i32* %array, i32 %length, i32 %n) { |
| ; CHECK-LABEL: @unsupported_latch_pred_loop_0_to_n( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[TMP5:%.*]] = icmp sle i32 [[N:%.*]], 0 |
| ; CHECK-NEXT: br i1 [[TMP5]], label [[EXIT:%.*]], label [[LOOP_PREHEADER:%.*]] |
| ; CHECK: loop.preheader: |
| ; CHECK-NEXT: br label [[LOOP:%.*]] |
| ; CHECK: loop: |
| ; CHECK-NEXT: [[LOOP_ACC:%.*]] = phi i32 [ [[LOOP_ACC_NEXT:%.*]], [[GUARDED:%.*]] ], [ 0, [[LOOP_PREHEADER]] ] |
| ; CHECK-NEXT: [[I:%.*]] = phi i32 [ [[I_NEXT:%.*]], [[GUARDED]] ], [ 0, [[LOOP_PREHEADER]] ] |
| ; CHECK-NEXT: [[WITHIN_BOUNDS:%.*]] = icmp ult i32 [[I]], [[LENGTH:%.*]] |
| ; CHECK-NEXT: [[WIDENABLE_COND:%.*]] = call i1 @llvm.experimental.widenable.condition() |
| ; CHECK-NEXT: [[EXIPLICIT_GUARD_COND:%.*]] = and i1 [[WITHIN_BOUNDS]], [[WIDENABLE_COND]] |
| ; CHECK-NEXT: br i1 [[EXIPLICIT_GUARD_COND]], label [[GUARDED]], label [[DEOPT:%.*]], !prof !0 |
| ; |
| entry: |
| %tmp5 = icmp sle i32 %n, 0 |
| br i1 %tmp5, label %exit, label %loop.preheader |
| |
| loop.preheader: ; preds = %entry |
| br label %loop |
| |
| loop: ; preds = %guarded, %loop.preheader |
| %loop.acc = phi i32 [ %loop.acc.next, %guarded ], [ 0, %loop.preheader ] |
| %i = phi i32 [ %i.next, %guarded ], [ 0, %loop.preheader ] |
| %within.bounds = icmp ult i32 %i, %length |
| %widenable_cond = call i1 @llvm.experimental.widenable.condition() |
| %exiplicit_guard_cond = and i1 %within.bounds, %widenable_cond |
| br i1 %exiplicit_guard_cond, label %guarded, label %deopt, !prof !0 |
| |
| deopt: ; preds = %loop |
| %deoptcall = call i32 (...) @llvm.experimental.deoptimize.i32(i32 9) [ "deopt"() ] |
| ret i32 %deoptcall |
| |
| guarded: ; preds = %loop |
| %i.i64 = zext i32 %i to i64 |
| %array.i.ptr = getelementptr inbounds i32, i32* %array, i64 %i.i64 |
| %array.i = load i32, i32* %array.i.ptr, align 4 |
| %loop.acc.next = add i32 %loop.acc, %array.i |
| %i.next = add nsw i32 %i, 1 |
| %continue = icmp ne i32 %i.next, %n |
| br i1 %continue, label %loop, label %exit |
| |
| exit: ; preds = %guarded, %entry |
| %result = phi i32 [ 0, %entry ], [ %loop.acc.next, %guarded ] |
| ret i32 %result |
| } |
| |
| define i32 @signed_loop_0_to_n_unsupported_iv_step(i32* %array, i32 %length, i32 %n) { |
| ; CHECK-LABEL: @signed_loop_0_to_n_unsupported_iv_step( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[TMP5:%.*]] = icmp sle i32 [[N:%.*]], 0 |
| ; CHECK-NEXT: br i1 [[TMP5]], label [[EXIT:%.*]], label [[LOOP_PREHEADER:%.*]] |
| ; CHECK: loop.preheader: |
| ; CHECK-NEXT: br label [[LOOP:%.*]] |
| ; CHECK: loop: |
| ; CHECK-NEXT: [[LOOP_ACC:%.*]] = phi i32 [ [[LOOP_ACC_NEXT:%.*]], [[GUARDED:%.*]] ], [ 0, [[LOOP_PREHEADER]] ] |
| ; CHECK-NEXT: [[I:%.*]] = phi i32 [ [[I_NEXT:%.*]], [[GUARDED]] ], [ 0, [[LOOP_PREHEADER]] ] |
| ; CHECK-NEXT: [[WITHIN_BOUNDS:%.*]] = icmp ult i32 [[I]], [[LENGTH:%.*]] |
| ; CHECK-NEXT: [[WIDENABLE_COND:%.*]] = call i1 @llvm.experimental.widenable.condition() |
| ; CHECK-NEXT: [[EXIPLICIT_GUARD_COND:%.*]] = and i1 [[WITHIN_BOUNDS]], [[WIDENABLE_COND]] |
| ; CHECK-NEXT: br i1 [[EXIPLICIT_GUARD_COND]], label [[GUARDED]], label [[DEOPT:%.*]], !prof !0 |
| ; |
| entry: |
| %tmp5 = icmp sle i32 %n, 0 |
| br i1 %tmp5, label %exit, label %loop.preheader |
| |
| loop.preheader: ; preds = %entry |
| br label %loop |
| |
| loop: ; preds = %guarded, %loop.preheader |
| %loop.acc = phi i32 [ %loop.acc.next, %guarded ], [ 0, %loop.preheader ] |
| %i = phi i32 [ %i.next, %guarded ], [ 0, %loop.preheader ] |
| %within.bounds = icmp ult i32 %i, %length |
| %widenable_cond = call i1 @llvm.experimental.widenable.condition() |
| %exiplicit_guard_cond = and i1 %within.bounds, %widenable_cond |
| br i1 %exiplicit_guard_cond, label %guarded, label %deopt, !prof !0 |
| |
| deopt: ; preds = %loop |
| %deoptcall = call i32 (...) @llvm.experimental.deoptimize.i32(i32 9) [ "deopt"() ] |
| ret i32 %deoptcall |
| |
| guarded: ; preds = %loop |
| %i.i64 = zext i32 %i to i64 |
| %array.i.ptr = getelementptr inbounds i32, i32* %array, i64 %i.i64 |
| %array.i = load i32, i32* %array.i.ptr, align 4 |
| %loop.acc.next = add i32 %loop.acc, %array.i |
| %i.next = add nsw i32 %i, 2 |
| %continue = icmp slt i32 %i.next, %n |
| br i1 %continue, label %loop, label %exit |
| |
| exit: ; preds = %guarded, %entry |
| %result = phi i32 [ 0, %entry ], [ %loop.acc.next, %guarded ] |
| ret i32 %result |
| } |
| |
| define i32 @signed_loop_0_to_n_equal_iv_range_check(i32* %array, i32 %length, i32 %n) { |
| ; CHECK-LABEL: @signed_loop_0_to_n_equal_iv_range_check( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[TMP5:%.*]] = icmp sle i32 [[N:%.*]], 0 |
| ; CHECK-NEXT: br i1 [[TMP5]], label [[EXIT:%.*]], label [[LOOP_PREHEADER:%.*]] |
| ; CHECK: loop.preheader: |
| ; CHECK-NEXT: [[TMP0:%.*]] = icmp sle i32 [[N]], [[LENGTH:%.*]] |
| ; CHECK-NEXT: [[TMP1:%.*]] = icmp ult i32 0, [[LENGTH]] |
| ; CHECK-NEXT: [[TMP2:%.*]] = and i1 [[TMP1]], [[TMP0]] |
| ; CHECK-NEXT: br label [[LOOP:%.*]] |
| ; CHECK: loop: |
| ; CHECK-NEXT: [[LOOP_ACC:%.*]] = phi i32 [ [[LOOP_ACC_NEXT:%.*]], [[GUARDED:%.*]] ], [ 0, [[LOOP_PREHEADER]] ] |
| ; CHECK-NEXT: [[I:%.*]] = phi i32 [ [[I_NEXT:%.*]], [[GUARDED]] ], [ 0, [[LOOP_PREHEADER]] ] |
| ; CHECK-NEXT: [[J:%.*]] = phi i32 [ [[J_NEXT:%.*]], [[GUARDED]] ], [ 0, [[LOOP_PREHEADER]] ] |
| ; CHECK-NEXT: [[WITHIN_BOUNDS:%.*]] = icmp ult i32 [[J]], [[LENGTH]] |
| ; CHECK-NEXT: [[WIDENABLE_COND:%.*]] = call i1 @llvm.experimental.widenable.condition() |
| ; CHECK-NEXT: [[EXIPLICIT_GUARD_COND:%.*]] = and i1 [[WITHIN_BOUNDS]], [[WIDENABLE_COND]] |
| ; CHECK-NEXT: [[TMP3:%.*]] = and i1 [[TMP2]], [[WIDENABLE_COND]] |
| ; CHECK-NEXT: br i1 [[TMP3]], label [[GUARDED]], label [[DEOPT:%.*]], !prof !0 |
| ; |
| entry: |
| %tmp5 = icmp sle i32 %n, 0 |
| br i1 %tmp5, label %exit, label %loop.preheader |
| |
| loop.preheader: ; preds = %entry |
| br label %loop |
| |
| loop: ; preds = %guarded, %loop.preheader |
| %loop.acc = phi i32 [ %loop.acc.next, %guarded ], [ 0, %loop.preheader ] |
| %i = phi i32 [ %i.next, %guarded ], [ 0, %loop.preheader ] |
| %j = phi i32 [ %j.next, %guarded ], [ 0, %loop.preheader ] |
| %within.bounds = icmp ult i32 %j, %length |
| %widenable_cond = call i1 @llvm.experimental.widenable.condition() |
| %exiplicit_guard_cond = and i1 %within.bounds, %widenable_cond |
| br i1 %exiplicit_guard_cond, label %guarded, label %deopt, !prof !0 |
| |
| deopt: ; preds = %loop |
| %deoptcall = call i32 (...) @llvm.experimental.deoptimize.i32(i32 9) [ "deopt"() ] |
| ret i32 %deoptcall |
| |
| guarded: ; preds = %loop |
| %i.i64 = zext i32 %i to i64 |
| %array.i.ptr = getelementptr inbounds i32, i32* %array, i64 %i.i64 |
| %array.i = load i32, i32* %array.i.ptr, align 4 |
| %loop.acc.next = add i32 %loop.acc, %array.i |
| %j.next = add nsw i32 %j, 1 |
| %i.next = add nsw i32 %i, 1 |
| %continue = icmp slt i32 %i.next, %n |
| br i1 %continue, label %loop, label %exit |
| |
| exit: ; preds = %guarded, %entry |
| %result = phi i32 [ 0, %entry ], [ %loop.acc.next, %guarded ] |
| ret i32 %result |
| } |
| |
| define i32 @signed_loop_start_to_n_offset_iv_range_check(i32* %array, i32 %start.i, i32 %start.j, i32 %length, i32 %n) { |
| ; CHECK-LABEL: @signed_loop_start_to_n_offset_iv_range_check( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[TMP5:%.*]] = icmp sle i32 [[N:%.*]], 0 |
| ; CHECK-NEXT: br i1 [[TMP5]], label [[EXIT:%.*]], label [[LOOP_PREHEADER:%.*]] |
| ; CHECK: loop.preheader: |
| ; CHECK-NEXT: [[TMP0:%.*]] = add i32 [[LENGTH:%.*]], [[START_I:%.*]] |
| ; CHECK-NEXT: [[TMP1:%.*]] = sub i32 [[TMP0]], [[START_J:%.*]] |
| ; CHECK-NEXT: [[TMP2:%.*]] = icmp sle i32 [[N]], [[TMP1]] |
| ; CHECK-NEXT: [[TMP3:%.*]] = icmp ult i32 [[START_J]], [[LENGTH]] |
| ; CHECK-NEXT: [[TMP4:%.*]] = and i1 [[TMP3]], [[TMP2]] |
| ; CHECK-NEXT: br label [[LOOP:%.*]] |
| ; CHECK: loop: |
| ; CHECK-NEXT: [[LOOP_ACC:%.*]] = phi i32 [ [[LOOP_ACC_NEXT:%.*]], [[GUARDED:%.*]] ], [ 0, [[LOOP_PREHEADER]] ] |
| ; CHECK-NEXT: [[I:%.*]] = phi i32 [ [[I_NEXT:%.*]], [[GUARDED]] ], [ [[START_I]], [[LOOP_PREHEADER]] ] |
| ; CHECK-NEXT: [[J:%.*]] = phi i32 [ [[J_NEXT:%.*]], [[GUARDED]] ], [ [[START_J]], [[LOOP_PREHEADER]] ] |
| ; CHECK-NEXT: [[WITHIN_BOUNDS:%.*]] = icmp ult i32 [[J]], [[LENGTH]] |
| ; CHECK-NEXT: [[WIDENABLE_COND:%.*]] = call i1 @llvm.experimental.widenable.condition() |
| ; CHECK-NEXT: [[EXIPLICIT_GUARD_COND:%.*]] = and i1 [[WITHIN_BOUNDS]], [[WIDENABLE_COND]] |
| ; CHECK-NEXT: [[TMP5:%.*]] = and i1 [[TMP4]], [[WIDENABLE_COND]] |
| ; CHECK-NEXT: br i1 [[TMP5]], label [[GUARDED]], label [[DEOPT:%.*]], !prof !0 |
| ; |
| entry: |
| %tmp5 = icmp sle i32 %n, 0 |
| br i1 %tmp5, label %exit, label %loop.preheader |
| |
| loop.preheader: ; preds = %entry |
| br label %loop |
| |
| loop: ; preds = %guarded, %loop.preheader |
| %loop.acc = phi i32 [ %loop.acc.next, %guarded ], [ 0, %loop.preheader ] |
| %i = phi i32 [ %i.next, %guarded ], [ %start.i, %loop.preheader ] |
| %j = phi i32 [ %j.next, %guarded ], [ %start.j, %loop.preheader ] |
| %within.bounds = icmp ult i32 %j, %length |
| %widenable_cond = call i1 @llvm.experimental.widenable.condition() |
| %exiplicit_guard_cond = and i1 %within.bounds, %widenable_cond |
| br i1 %exiplicit_guard_cond, label %guarded, label %deopt, !prof !0 |
| |
| deopt: ; preds = %loop |
| %deoptcall = call i32 (...) @llvm.experimental.deoptimize.i32(i32 9) [ "deopt"() ] |
| ret i32 %deoptcall |
| |
| guarded: ; preds = %loop |
| %i.i64 = zext i32 %i to i64 |
| %array.i.ptr = getelementptr inbounds i32, i32* %array, i64 %i.i64 |
| %array.i = load i32, i32* %array.i.ptr, align 4 |
| %loop.acc.next = add i32 %loop.acc, %array.i |
| %j.next = add i32 %j, 1 |
| %i.next = add i32 %i, 1 |
| %continue = icmp slt i32 %i.next, %n |
| br i1 %continue, label %loop, label %exit |
| |
| exit: ; preds = %guarded, %entry |
| %result = phi i32 [ 0, %entry ], [ %loop.acc.next, %guarded ] |
| ret i32 %result |
| } |
| |
| define i32 @signed_loop_0_to_n_different_iv_types(i32* %array, i16 %length, i32 %n) { |
| ; CHECK-LABEL: @signed_loop_0_to_n_different_iv_types( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[TMP5:%.*]] = icmp sle i32 [[N:%.*]], 0 |
| ; CHECK-NEXT: br i1 [[TMP5]], label [[EXIT:%.*]], label [[LOOP_PREHEADER:%.*]] |
| ; CHECK: loop.preheader: |
| ; CHECK-NEXT: br label [[LOOP:%.*]] |
| ; CHECK: loop: |
| ; CHECK-NEXT: [[LOOP_ACC:%.*]] = phi i32 [ [[LOOP_ACC_NEXT:%.*]], [[GUARDED:%.*]] ], [ 0, [[LOOP_PREHEADER]] ] |
| ; CHECK-NEXT: [[I:%.*]] = phi i32 [ [[I_NEXT:%.*]], [[GUARDED]] ], [ 0, [[LOOP_PREHEADER]] ] |
| ; CHECK-NEXT: [[J:%.*]] = phi i16 [ [[J_NEXT:%.*]], [[GUARDED]] ], [ 0, [[LOOP_PREHEADER]] ] |
| ; CHECK-NEXT: [[WITHIN_BOUNDS:%.*]] = icmp ult i16 [[J]], [[LENGTH:%.*]] |
| ; CHECK-NEXT: [[WIDENABLE_COND:%.*]] = call i1 @llvm.experimental.widenable.condition() |
| ; CHECK-NEXT: [[EXIPLICIT_GUARD_COND:%.*]] = and i1 [[WITHIN_BOUNDS]], [[WIDENABLE_COND]] |
| ; CHECK-NEXT: br i1 [[EXIPLICIT_GUARD_COND]], label [[GUARDED]], label [[DEOPT:%.*]], !prof !0 |
| ; |
| entry: |
| %tmp5 = icmp sle i32 %n, 0 |
| br i1 %tmp5, label %exit, label %loop.preheader |
| |
| loop.preheader: ; preds = %entry |
| br label %loop |
| |
| loop: ; preds = %guarded, %loop.preheader |
| %loop.acc = phi i32 [ %loop.acc.next, %guarded ], [ 0, %loop.preheader ] |
| %i = phi i32 [ %i.next, %guarded ], [ 0, %loop.preheader ] |
| %j = phi i16 [ %j.next, %guarded ], [ 0, %loop.preheader ] |
| %within.bounds = icmp ult i16 %j, %length |
| %widenable_cond = call i1 @llvm.experimental.widenable.condition() |
| %exiplicit_guard_cond = and i1 %within.bounds, %widenable_cond |
| br i1 %exiplicit_guard_cond, label %guarded, label %deopt, !prof !0 |
| |
| deopt: ; preds = %loop |
| %deoptcall = call i32 (...) @llvm.experimental.deoptimize.i32(i32 9) [ "deopt"() ] |
| ret i32 %deoptcall |
| |
| guarded: ; preds = %loop |
| %i.i64 = zext i32 %i to i64 |
| %array.i.ptr = getelementptr inbounds i32, i32* %array, i64 %i.i64 |
| %array.i = load i32, i32* %array.i.ptr, align 4 |
| %loop.acc.next = add i32 %loop.acc, %array.i |
| %j.next = add i16 %j, 1 |
| %i.next = add i32 %i, 1 |
| %continue = icmp slt i32 %i.next, %n |
| br i1 %continue, label %loop, label %exit |
| |
| exit: ; preds = %guarded, %entry |
| %result = phi i32 [ 0, %entry ], [ %loop.acc.next, %guarded ] |
| ret i32 %result |
| } |
| |
| define i32 @signed_loop_0_to_n_different_iv_strides(i32* %array, i32 %length, i32 %n) { |
| ; CHECK-LABEL: @signed_loop_0_to_n_different_iv_strides( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[TMP5:%.*]] = icmp sle i32 [[N:%.*]], 0 |
| ; CHECK-NEXT: br i1 [[TMP5]], label [[EXIT:%.*]], label [[LOOP_PREHEADER:%.*]] |
| ; CHECK: loop.preheader: |
| ; CHECK-NEXT: br label [[LOOP:%.*]] |
| ; CHECK: loop: |
| ; CHECK-NEXT: [[LOOP_ACC:%.*]] = phi i32 [ [[LOOP_ACC_NEXT:%.*]], [[GUARDED:%.*]] ], [ 0, [[LOOP_PREHEADER]] ] |
| ; CHECK-NEXT: [[I:%.*]] = phi i32 [ [[I_NEXT:%.*]], [[GUARDED]] ], [ 0, [[LOOP_PREHEADER]] ] |
| ; CHECK-NEXT: [[J:%.*]] = phi i32 [ [[J_NEXT:%.*]], [[GUARDED]] ], [ 0, [[LOOP_PREHEADER]] ] |
| ; CHECK-NEXT: [[WITHIN_BOUNDS:%.*]] = icmp ult i32 [[J]], [[LENGTH:%.*]] |
| ; CHECK-NEXT: [[WIDENABLE_COND:%.*]] = call i1 @llvm.experimental.widenable.condition() |
| ; CHECK-NEXT: [[EXIPLICIT_GUARD_COND:%.*]] = and i1 [[WITHIN_BOUNDS]], [[WIDENABLE_COND]] |
| ; CHECK-NEXT: br i1 [[EXIPLICIT_GUARD_COND]], label [[GUARDED]], label [[DEOPT:%.*]], !prof !0 |
| ; |
| entry: |
| %tmp5 = icmp sle i32 %n, 0 |
| br i1 %tmp5, label %exit, label %loop.preheader |
| |
| loop.preheader: ; preds = %entry |
| br label %loop |
| |
| loop: ; preds = %guarded, %loop.preheader |
| %loop.acc = phi i32 [ %loop.acc.next, %guarded ], [ 0, %loop.preheader ] |
| %i = phi i32 [ %i.next, %guarded ], [ 0, %loop.preheader ] |
| %j = phi i32 [ %j.next, %guarded ], [ 0, %loop.preheader ] |
| %within.bounds = icmp ult i32 %j, %length |
| %widenable_cond = call i1 @llvm.experimental.widenable.condition() |
| %exiplicit_guard_cond = and i1 %within.bounds, %widenable_cond |
| br i1 %exiplicit_guard_cond, label %guarded, label %deopt, !prof !0 |
| |
| deopt: ; preds = %loop |
| %deoptcall = call i32 (...) @llvm.experimental.deoptimize.i32(i32 9) [ "deopt"() ] |
| ret i32 %deoptcall |
| |
| guarded: ; preds = %loop |
| %i.i64 = zext i32 %i to i64 |
| %array.i.ptr = getelementptr inbounds i32, i32* %array, i64 %i.i64 |
| %array.i = load i32, i32* %array.i.ptr, align 4 |
| %loop.acc.next = add i32 %loop.acc, %array.i |
| %j.next = add nsw i32 %j, 2 |
| %i.next = add nsw i32 %i, 1 |
| %continue = icmp slt i32 %i.next, %n |
| br i1 %continue, label %loop, label %exit |
| |
| exit: ; preds = %guarded, %entry |
| %result = phi i32 [ 0, %entry ], [ %loop.acc.next, %guarded ] |
| ret i32 %result |
| } |
| |
| define i32 @two_range_checks(i32* %array.1, i32 %length.1, i32* %array.2, i32 %length.2, i32 %n) { |
| ; CHECK-LABEL: @two_range_checks( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[TMP5:%.*]] = icmp eq i32 [[N:%.*]], 0 |
| ; CHECK-NEXT: br i1 [[TMP5]], label [[EXIT:%.*]], label [[LOOP_PREHEADER:%.*]] |
| ; CHECK: loop.preheader: |
| ; CHECK-NEXT: [[TMP0:%.*]] = icmp ule i32 [[N]], [[LENGTH_2:%.*]] |
| ; CHECK-NEXT: [[TMP1:%.*]] = icmp ult i32 0, [[LENGTH_2]] |
| ; CHECK-NEXT: [[TMP2:%.*]] = and i1 [[TMP1]], [[TMP0]] |
| ; CHECK-NEXT: [[TMP3:%.*]] = icmp ule i32 [[N]], [[LENGTH_1:%.*]] |
| ; CHECK-NEXT: [[TMP4:%.*]] = icmp ult i32 0, [[LENGTH_1]] |
| ; CHECK-NEXT: [[TMP5:%.*]] = and i1 [[TMP4]], [[TMP3]] |
| ; CHECK-NEXT: br label [[LOOP:%.*]] |
| ; CHECK: loop: |
| ; CHECK-NEXT: [[LOOP_ACC:%.*]] = phi i32 [ [[LOOP_ACC_NEXT:%.*]], [[GUARDED:%.*]] ], [ 0, [[LOOP_PREHEADER]] ] |
| ; CHECK-NEXT: [[I:%.*]] = phi i32 [ [[I_NEXT:%.*]], [[GUARDED]] ], [ 0, [[LOOP_PREHEADER]] ] |
| ; CHECK-NEXT: [[WITHIN_BOUNDS_1:%.*]] = icmp ult i32 [[I]], [[LENGTH_1]] |
| ; CHECK-NEXT: [[WITHIN_BOUNDS_2:%.*]] = icmp ult i32 [[I]], [[LENGTH_2]] |
| ; CHECK-NEXT: [[WITHIN_BOUNDS:%.*]] = and i1 [[WITHIN_BOUNDS_1]], [[WITHIN_BOUNDS_2]] |
| ; CHECK-NEXT: [[WIDENABLE_COND:%.*]] = call i1 @llvm.experimental.widenable.condition() |
| ; CHECK-NEXT: [[EXIPLICIT_GUARD_COND:%.*]] = and i1 [[WITHIN_BOUNDS]], [[WIDENABLE_COND]] |
| ; CHECK-NEXT: [[TMP6:%.*]] = and i1 [[TMP2]], [[TMP5]] |
| ; CHECK-NEXT: [[TMP7:%.*]] = and i1 [[TMP6]], [[WIDENABLE_COND]] |
| ; CHECK-NEXT: br i1 [[TMP7]], label [[GUARDED]], label [[DEOPT:%.*]], !prof !0 |
| ; |
| entry: |
| %tmp5 = icmp eq i32 %n, 0 |
| br i1 %tmp5, label %exit, label %loop.preheader |
| |
| loop.preheader: ; preds = %entry |
| br label %loop |
| |
| loop: ; preds = %guarded, %loop.preheader |
| %loop.acc = phi i32 [ %loop.acc.next, %guarded ], [ 0, %loop.preheader ] |
| %i = phi i32 [ %i.next, %guarded ], [ 0, %loop.preheader ] |
| %within.bounds.1 = icmp ult i32 %i, %length.1 |
| %within.bounds.2 = icmp ult i32 %i, %length.2 |
| %within.bounds = and i1 %within.bounds.1, %within.bounds.2 |
| %widenable_cond = call i1 @llvm.experimental.widenable.condition() |
| %exiplicit_guard_cond = and i1 %within.bounds, %widenable_cond |
| br i1 %exiplicit_guard_cond, label %guarded, label %deopt, !prof !0 |
| |
| deopt: ; preds = %loop |
| %deoptcall = call i32 (...) @llvm.experimental.deoptimize.i32(i32 9) [ "deopt"() ] |
| ret i32 %deoptcall |
| |
| guarded: ; preds = %loop |
| %i.i64 = zext i32 %i to i64 |
| %array.1.i.ptr = getelementptr inbounds i32, i32* %array.1, i64 %i.i64 |
| %array.1.i = load i32, i32* %array.1.i.ptr, align 4 |
| %loop.acc.1 = add i32 %loop.acc, %array.1.i |
| %array.2.i.ptr = getelementptr inbounds i32, i32* %array.2, i64 %i.i64 |
| %array.2.i = load i32, i32* %array.2.i.ptr, align 4 |
| %loop.acc.next = add i32 %loop.acc.1, %array.2.i |
| %i.next = add nuw i32 %i, 1 |
| %continue = icmp ult i32 %i.next, %n |
| br i1 %continue, label %loop, label %exit |
| |
| exit: ; preds = %guarded, %entry |
| %result = phi i32 [ 0, %entry ], [ %loop.acc.next, %guarded ] |
| ret i32 %result |
| } |
| |
| define i32 @three_range_checks(i32* %array.1, i32 %length.1, i32* %array.2, i32 %length.2, i32* %array.3, i32 %length.3, i32 %n) { |
| ; CHECK-LABEL: @three_range_checks( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[TMP5:%.*]] = icmp eq i32 [[N:%.*]], 0 |
| ; CHECK-NEXT: br i1 [[TMP5]], label [[EXIT:%.*]], label [[LOOP_PREHEADER:%.*]] |
| ; CHECK: loop.preheader: |
| ; CHECK-NEXT: [[TMP0:%.*]] = icmp ule i32 [[N]], [[LENGTH_3:%.*]] |
| ; CHECK-NEXT: [[TMP1:%.*]] = icmp ult i32 0, [[LENGTH_3]] |
| ; CHECK-NEXT: [[TMP2:%.*]] = and i1 [[TMP1]], [[TMP0]] |
| ; CHECK-NEXT: [[TMP3:%.*]] = icmp ule i32 [[N]], [[LENGTH_2:%.*]] |
| ; CHECK-NEXT: [[TMP4:%.*]] = icmp ult i32 0, [[LENGTH_2]] |
| ; CHECK-NEXT: [[TMP5:%.*]] = and i1 [[TMP4]], [[TMP3]] |
| ; CHECK-NEXT: [[TMP6:%.*]] = icmp ule i32 [[N]], [[LENGTH_1:%.*]] |
| ; CHECK-NEXT: [[TMP7:%.*]] = icmp ult i32 0, [[LENGTH_1]] |
| ; CHECK-NEXT: [[TMP8:%.*]] = and i1 [[TMP7]], [[TMP6]] |
| ; CHECK-NEXT: br label [[LOOP:%.*]] |
| ; CHECK: loop: |
| ; CHECK-NEXT: [[LOOP_ACC:%.*]] = phi i32 [ [[LOOP_ACC_NEXT:%.*]], [[GUARDED:%.*]] ], [ 0, [[LOOP_PREHEADER]] ] |
| ; CHECK-NEXT: [[I:%.*]] = phi i32 [ [[I_NEXT:%.*]], [[GUARDED]] ], [ 0, [[LOOP_PREHEADER]] ] |
| ; CHECK-NEXT: [[WITHIN_BOUNDS_1:%.*]] = icmp ult i32 [[I]], [[LENGTH_1]] |
| ; CHECK-NEXT: [[WITHIN_BOUNDS_2:%.*]] = icmp ult i32 [[I]], [[LENGTH_2]] |
| ; CHECK-NEXT: [[WITHIN_BOUNDS_3:%.*]] = icmp ult i32 [[I]], [[LENGTH_3]] |
| ; CHECK-NEXT: [[WITHIN_BOUNDS_1_AND_2:%.*]] = and i1 [[WITHIN_BOUNDS_1]], [[WITHIN_BOUNDS_2]] |
| ; CHECK-NEXT: [[WITHIN_BOUNDS:%.*]] = and i1 [[WITHIN_BOUNDS_1_AND_2]], [[WITHIN_BOUNDS_3]] |
| ; CHECK-NEXT: [[WIDENABLE_COND:%.*]] = call i1 @llvm.experimental.widenable.condition() |
| ; CHECK-NEXT: [[EXIPLICIT_GUARD_COND:%.*]] = and i1 [[WITHIN_BOUNDS]], [[WIDENABLE_COND]] |
| ; CHECK-NEXT: [[TMP9:%.*]] = and i1 [[TMP2]], [[TMP5]] |
| ; CHECK-NEXT: [[TMP10:%.*]] = and i1 [[TMP9]], [[TMP8]] |
| ; CHECK-NEXT: [[TMP11:%.*]] = and i1 [[TMP10]], [[WIDENABLE_COND]] |
| ; CHECK-NEXT: br i1 [[TMP11]], label [[GUARDED]], label [[DEOPT:%.*]], !prof !0 |
| ; |
| entry: |
| %tmp5 = icmp eq i32 %n, 0 |
| br i1 %tmp5, label %exit, label %loop.preheader |
| |
| loop.preheader: ; preds = %entry |
| br label %loop |
| |
| loop: ; preds = %guarded, %loop.preheader |
| %loop.acc = phi i32 [ %loop.acc.next, %guarded ], [ 0, %loop.preheader ] |
| %i = phi i32 [ %i.next, %guarded ], [ 0, %loop.preheader ] |
| %within.bounds.1 = icmp ult i32 %i, %length.1 |
| %within.bounds.2 = icmp ult i32 %i, %length.2 |
| %within.bounds.3 = icmp ult i32 %i, %length.3 |
| %within.bounds.1.and.2 = and i1 %within.bounds.1, %within.bounds.2 |
| %within.bounds = and i1 %within.bounds.1.and.2, %within.bounds.3 |
| %widenable_cond = call i1 @llvm.experimental.widenable.condition() |
| %exiplicit_guard_cond = and i1 %within.bounds, %widenable_cond |
| br i1 %exiplicit_guard_cond, label %guarded, label %deopt, !prof !0 |
| |
| deopt: ; preds = %loop |
| %deoptcall = call i32 (...) @llvm.experimental.deoptimize.i32(i32 9) [ "deopt"() ] |
| ret i32 %deoptcall |
| |
| guarded: ; preds = %loop |
| %i.i64 = zext i32 %i to i64 |
| %array.1.i.ptr = getelementptr inbounds i32, i32* %array.1, i64 %i.i64 |
| %array.1.i = load i32, i32* %array.1.i.ptr, align 4 |
| %loop.acc.1 = add i32 %loop.acc, %array.1.i |
| %array.2.i.ptr = getelementptr inbounds i32, i32* %array.2, i64 %i.i64 |
| %array.2.i = load i32, i32* %array.2.i.ptr, align 4 |
| %loop.acc.2 = add i32 %loop.acc.1, %array.2.i |
| %array.3.i.ptr = getelementptr inbounds i32, i32* %array.3, i64 %i.i64 |
| %array.3.i = load i32, i32* %array.3.i.ptr, align 4 |
| %loop.acc.next = add i32 %loop.acc.2, %array.3.i |
| %i.next = add nuw i32 %i, 1 |
| %continue = icmp ult i32 %i.next, %n |
| br i1 %continue, label %loop, label %exit |
| |
| exit: ; preds = %guarded, %entry |
| %result = phi i32 [ 0, %entry ], [ %loop.acc.next, %guarded ] |
| ret i32 %result |
| } |
| |
| define i32 @three_guards(i32* %array.1, i32 %length.1, i32* %array.2, i32 %length.2, i32* %array.3, i32 %length.3, i32 %n) { |
| ; CHECK-LABEL: @three_guards( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[TMP5:%.*]] = icmp eq i32 [[N:%.*]], 0 |
| ; CHECK-NEXT: br i1 [[TMP5]], label [[EXIT:%.*]], label [[LOOP_PREHEADER:%.*]] |
| ; CHECK: loop.preheader: |
| ; CHECK-NEXT: [[TMP0:%.*]] = icmp ule i32 [[N]], [[LENGTH_1:%.*]] |
| ; CHECK-NEXT: [[TMP1:%.*]] = icmp ult i32 0, [[LENGTH_1]] |
| ; CHECK-NEXT: [[TMP2:%.*]] = and i1 [[TMP1]], [[TMP0]] |
| ; CHECK-NEXT: [[TMP3:%.*]] = icmp ule i32 [[N]], [[LENGTH_2:%.*]] |
| ; CHECK-NEXT: [[TMP4:%.*]] = icmp ult i32 0, [[LENGTH_2]] |
| ; CHECK-NEXT: [[TMP5:%.*]] = and i1 [[TMP4]], [[TMP3]] |
| ; CHECK-NEXT: [[TMP6:%.*]] = icmp ule i32 [[N]], [[LENGTH_3:%.*]] |
| ; CHECK-NEXT: [[TMP7:%.*]] = icmp ult i32 0, [[LENGTH_3]] |
| ; CHECK-NEXT: [[TMP8:%.*]] = and i1 [[TMP7]], [[TMP6]] |
| ; CHECK-NEXT: br label [[LOOP:%.*]] |
| ; CHECK: loop: |
| ; CHECK-NEXT: [[LOOP_ACC:%.*]] = phi i32 [ [[LOOP_ACC_NEXT:%.*]], [[GUARDED6:%.*]] ], [ 0, [[LOOP_PREHEADER]] ] |
| ; CHECK-NEXT: [[I:%.*]] = phi i32 [ [[I_NEXT:%.*]], [[GUARDED6]] ], [ 0, [[LOOP_PREHEADER]] ] |
| ; CHECK-NEXT: [[WITHIN_BOUNDS_1:%.*]] = icmp ult i32 [[I]], [[LENGTH_1]] |
| ; CHECK-NEXT: [[WIDENABLE_COND:%.*]] = call i1 @llvm.experimental.widenable.condition() |
| ; CHECK-NEXT: [[EXIPLICIT_GUARD_COND:%.*]] = and i1 [[WITHIN_BOUNDS_1]], [[WIDENABLE_COND]] |
| ; CHECK-NEXT: [[TMP9:%.*]] = and i1 [[TMP2]], [[WIDENABLE_COND]] |
| ; CHECK-NEXT: br i1 [[TMP9]], label [[GUARDED:%.*]], label [[DEOPT:%.*]], !prof !0 |
| ; CHECK: deopt: |
| ; CHECK-NEXT: [[DEOPTCALL:%.*]] = call i32 (...) @llvm.experimental.deoptimize.i32(i32 9) [ "deopt"() ] |
| ; CHECK-NEXT: ret i32 [[DEOPTCALL]] |
| ; CHECK: guarded: |
| ; CHECK-NEXT: [[I_I64:%.*]] = zext i32 [[I]] to i64 |
| ; CHECK-NEXT: [[ARRAY_1_I_PTR:%.*]] = getelementptr inbounds i32, i32* [[ARRAY_1:%.*]], i64 [[I_I64]] |
| ; CHECK-NEXT: [[ARRAY_1_I:%.*]] = load i32, i32* [[ARRAY_1_I_PTR]], align 4 |
| ; CHECK-NEXT: [[LOOP_ACC_1:%.*]] = add i32 [[LOOP_ACC]], [[ARRAY_1_I]] |
| ; CHECK-NEXT: [[WITHIN_BOUNDS_2:%.*]] = icmp ult i32 [[I]], [[LENGTH_2]] |
| ; CHECK-NEXT: [[WIDENABLE_COND4:%.*]] = call i1 @llvm.experimental.widenable.condition() |
| ; CHECK-NEXT: [[EXIPLICIT_GUARD_COND5:%.*]] = and i1 [[WITHIN_BOUNDS_2]], [[WIDENABLE_COND4]] |
| ; CHECK-NEXT: [[TMP10:%.*]] = and i1 [[TMP5]], [[WIDENABLE_COND4]] |
| ; CHECK-NEXT: br i1 [[TMP10]], label [[GUARDED1:%.*]], label [[DEOPT2:%.*]], !prof !0 |
| ; CHECK: deopt2: |
| ; CHECK-NEXT: [[DEOPTCALL3:%.*]] = call i32 (...) @llvm.experimental.deoptimize.i32(i32 9) [ "deopt"() ] |
| ; CHECK-NEXT: ret i32 [[DEOPTCALL3]] |
| ; CHECK: guarded1: |
| ; CHECK-NEXT: [[ARRAY_2_I_PTR:%.*]] = getelementptr inbounds i32, i32* [[ARRAY_2:%.*]], i64 [[I_I64]] |
| ; CHECK-NEXT: [[ARRAY_2_I:%.*]] = load i32, i32* [[ARRAY_2_I_PTR]], align 4 |
| ; CHECK-NEXT: [[LOOP_ACC_2:%.*]] = add i32 [[LOOP_ACC_1]], [[ARRAY_2_I]] |
| ; CHECK-NEXT: [[WITHIN_BOUNDS_3:%.*]] = icmp ult i32 [[I]], [[LENGTH_3]] |
| ; CHECK-NEXT: [[WIDENABLE_COND9:%.*]] = call i1 @llvm.experimental.widenable.condition() |
| ; CHECK-NEXT: [[EXIPLICIT_GUARD_COND10:%.*]] = and i1 [[WITHIN_BOUNDS_3]], [[WIDENABLE_COND9]] |
| ; CHECK-NEXT: [[TMP11:%.*]] = and i1 [[TMP8]], [[WIDENABLE_COND9]] |
| ; CHECK-NEXT: br i1 [[TMP11]], label [[GUARDED6]], label [[DEOPT7:%.*]], !prof !0 |
| ; CHECK: deopt7: |
| ; CHECK-NEXT: [[DEOPTCALL8:%.*]] = call i32 (...) @llvm.experimental.deoptimize.i32(i32 9) [ "deopt"() ] |
| ; CHECK-NEXT: ret i32 [[DEOPTCALL8]] |
| ; CHECK: guarded6: |
| ; CHECK-NEXT: [[ARRAY_3_I_PTR:%.*]] = getelementptr inbounds i32, i32* [[ARRAY_3:%.*]], i64 [[I_I64]] |
| ; CHECK-NEXT: [[ARRAY_3_I:%.*]] = load i32, i32* [[ARRAY_3_I_PTR]], align 4 |
| ; CHECK-NEXT: [[LOOP_ACC_NEXT]] = add i32 [[LOOP_ACC_2]], [[ARRAY_3_I]] |
| ; CHECK-NEXT: [[I_NEXT]] = add nuw i32 [[I]], 1 |
| ; CHECK-NEXT: [[CONTINUE:%.*]] = icmp ult i32 [[I_NEXT]], [[N]] |
| ; CHECK-NEXT: br i1 [[CONTINUE]], label [[LOOP]], label [[EXIT_LOOPEXIT:%.*]] |
| ; CHECK: exit.loopexit: |
| ; CHECK-NEXT: [[LOOP_ACC_NEXT_LCSSA:%.*]] = phi i32 [ [[LOOP_ACC_NEXT]], [[GUARDED6]] ] |
| ; CHECK-NEXT: br label [[EXIT]] |
| ; CHECK: exit: |
| ; CHECK-NEXT: [[RESULT:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[LOOP_ACC_NEXT_LCSSA]], [[EXIT_LOOPEXIT]] ] |
| ; CHECK-NEXT: ret i32 [[RESULT]] |
| ; |
| entry: |
| %tmp5 = icmp eq i32 %n, 0 |
| br i1 %tmp5, label %exit, label %loop.preheader |
| |
| loop.preheader: ; preds = %entry |
| br label %loop |
| |
| loop: ; preds = %guarded6, %loop.preheader |
| %loop.acc = phi i32 [ %loop.acc.next, %guarded6 ], [ 0, %loop.preheader ] |
| %i = phi i32 [ %i.next, %guarded6 ], [ 0, %loop.preheader ] |
| %within.bounds.1 = icmp ult i32 %i, %length.1 |
| %widenable_cond = call i1 @llvm.experimental.widenable.condition() |
| %exiplicit_guard_cond = and i1 %within.bounds.1, %widenable_cond |
| br i1 %exiplicit_guard_cond, label %guarded, label %deopt, !prof !0 |
| |
| deopt: ; preds = %loop |
| %deoptcall = call i32 (...) @llvm.experimental.deoptimize.i32(i32 9) [ "deopt"() ] |
| ret i32 %deoptcall |
| |
| guarded: ; preds = %loop |
| %i.i64 = zext i32 %i to i64 |
| %array.1.i.ptr = getelementptr inbounds i32, i32* %array.1, i64 %i.i64 |
| %array.1.i = load i32, i32* %array.1.i.ptr, align 4 |
| %loop.acc.1 = add i32 %loop.acc, %array.1.i |
| %within.bounds.2 = icmp ult i32 %i, %length.2 |
| %widenable_cond4 = call i1 @llvm.experimental.widenable.condition() |
| %exiplicit_guard_cond5 = and i1 %within.bounds.2, %widenable_cond4 |
| br i1 %exiplicit_guard_cond5, label %guarded1, label %deopt2, !prof !0 |
| |
| deopt2: ; preds = %guarded |
| %deoptcall3 = call i32 (...) @llvm.experimental.deoptimize.i32(i32 9) [ "deopt"() ] |
| ret i32 %deoptcall3 |
| |
| guarded1: ; preds = %guarded |
| %array.2.i.ptr = getelementptr inbounds i32, i32* %array.2, i64 %i.i64 |
| %array.2.i = load i32, i32* %array.2.i.ptr, align 4 |
| %loop.acc.2 = add i32 %loop.acc.1, %array.2.i |
| %within.bounds.3 = icmp ult i32 %i, %length.3 |
| %widenable_cond9 = call i1 @llvm.experimental.widenable.condition() |
| %exiplicit_guard_cond10 = and i1 %within.bounds.3, %widenable_cond9 |
| br i1 %exiplicit_guard_cond10, label %guarded6, label %deopt7, !prof !0 |
| |
| deopt7: ; preds = %guarded1 |
| %deoptcall8 = call i32 (...) @llvm.experimental.deoptimize.i32(i32 9) [ "deopt"() ] |
| ret i32 %deoptcall8 |
| |
| guarded6: ; preds = %guarded1 |
| %array.3.i.ptr = getelementptr inbounds i32, i32* %array.3, i64 %i.i64 |
| %array.3.i = load i32, i32* %array.3.i.ptr, align 4 |
| %loop.acc.next = add i32 %loop.acc.2, %array.3.i |
| %i.next = add nuw i32 %i, 1 |
| %continue = icmp ult i32 %i.next, %n |
| br i1 %continue, label %loop, label %exit |
| |
| exit: ; preds = %guarded6, %entry |
| %result = phi i32 [ 0, %entry ], [ %loop.acc.next, %guarded6 ] |
| ret i32 %result |
| } |
| |
| define i32 @unsigned_loop_0_to_n_unrelated_condition(i32* %array, i32 %length, i32 %n, i32 %x) { |
| ; CHECK-LABEL: @unsigned_loop_0_to_n_unrelated_condition( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[TMP5:%.*]] = icmp eq i32 [[N:%.*]], 0 |
| ; CHECK-NEXT: br i1 [[TMP5]], label [[EXIT:%.*]], label [[LOOP_PREHEADER:%.*]] |
| ; CHECK: loop.preheader: |
| ; CHECK-NEXT: [[TMP0:%.*]] = icmp ule i32 [[N]], [[LENGTH:%.*]] |
| ; CHECK-NEXT: [[TMP1:%.*]] = icmp ult i32 0, [[LENGTH]] |
| ; CHECK-NEXT: [[TMP2:%.*]] = and i1 [[TMP1]], [[TMP0]] |
| ; CHECK-NEXT: br label [[LOOP:%.*]] |
| ; CHECK: loop: |
| ; CHECK-NEXT: [[LOOP_ACC:%.*]] = phi i32 [ [[LOOP_ACC_NEXT:%.*]], [[GUARDED:%.*]] ], [ 0, [[LOOP_PREHEADER]] ] |
| ; CHECK-NEXT: [[I:%.*]] = phi i32 [ [[I_NEXT:%.*]], [[GUARDED]] ], [ 0, [[LOOP_PREHEADER]] ] |
| ; CHECK-NEXT: [[WITHIN_BOUNDS:%.*]] = icmp ult i32 [[I]], [[LENGTH]] |
| ; CHECK-NEXT: [[UNRELATED_COND:%.*]] = icmp ult i32 [[X:%.*]], [[LENGTH]] |
| ; CHECK-NEXT: [[GUARD_COND:%.*]] = and i1 [[WITHIN_BOUNDS]], [[UNRELATED_COND]] |
| ; CHECK-NEXT: [[WIDENABLE_COND:%.*]] = call i1 @llvm.experimental.widenable.condition() |
| ; CHECK-NEXT: [[EXIPLICIT_GUARD_COND:%.*]] = and i1 [[GUARD_COND]], [[WIDENABLE_COND]] |
| ; CHECK-NEXT: [[TMP3:%.*]] = and i1 [[UNRELATED_COND]], [[TMP2]] |
| ; CHECK-NEXT: [[TMP4:%.*]] = and i1 [[TMP3]], [[WIDENABLE_COND]] |
| ; CHECK-NEXT: br i1 [[TMP4]], label [[GUARDED]], label [[DEOPT:%.*]], !prof !0 |
| ; |
| entry: |
| %tmp5 = icmp eq i32 %n, 0 |
| br i1 %tmp5, label %exit, label %loop.preheader |
| |
| loop.preheader: ; preds = %entry |
| br label %loop |
| |
| loop: ; preds = %guarded, %loop.preheader |
| %loop.acc = phi i32 [ %loop.acc.next, %guarded ], [ 0, %loop.preheader ] |
| %i = phi i32 [ %i.next, %guarded ], [ 0, %loop.preheader ] |
| %within.bounds = icmp ult i32 %i, %length |
| %unrelated.cond = icmp ult i32 %x, %length |
| %guard.cond = and i1 %within.bounds, %unrelated.cond |
| %widenable_cond = call i1 @llvm.experimental.widenable.condition() |
| %exiplicit_guard_cond = and i1 %guard.cond, %widenable_cond |
| br i1 %exiplicit_guard_cond, label %guarded, label %deopt, !prof !0 |
| |
| deopt: ; preds = %loop |
| %deoptcall = call i32 (...) @llvm.experimental.deoptimize.i32(i32 9) [ "deopt"() ] |
| ret i32 %deoptcall |
| |
| guarded: ; preds = %loop |
| %i.i64 = zext i32 %i to i64 |
| %array.i.ptr = getelementptr inbounds i32, i32* %array, i64 %i.i64 |
| %array.i = load i32, i32* %array.i.ptr, align 4 |
| %loop.acc.next = add i32 %loop.acc, %array.i |
| %i.next = add nuw i32 %i, 1 |
| %continue = icmp ult i32 %i.next, %n |
| br i1 %continue, label %loop, label %exit |
| |
| exit: ; preds = %guarded, %entry |
| %result = phi i32 [ 0, %entry ], [ %loop.acc.next, %guarded ] |
| ret i32 %result |
| } |
| |
| define i32 @test_no_widened_conditions(i32* %array, i32 %length, i32 %n, i32 %x1, i32 %x2, i32 %x3) { |
| ; CHECK-LABEL: @test_no_widened_conditions( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[TMP5:%.*]] = icmp eq i32 [[N:%.*]], 0 |
| ; CHECK-NEXT: br i1 [[TMP5]], label [[EXIT:%.*]], label [[LOOP_PREHEADER:%.*]] |
| ; CHECK: loop.preheader: |
| ; CHECK-NEXT: br label [[LOOP:%.*]] |
| ; CHECK: loop: |
| ; CHECK-NEXT: [[LOOP_ACC:%.*]] = phi i32 [ [[LOOP_ACC_NEXT:%.*]], [[GUARDED:%.*]] ], [ 0, [[LOOP_PREHEADER]] ] |
| ; CHECK-NEXT: [[I:%.*]] = phi i32 [ [[I_NEXT:%.*]], [[GUARDED]] ], [ 0, [[LOOP_PREHEADER]] ] |
| ; CHECK-NEXT: [[UNRELATED_COND_1:%.*]] = icmp eq i32 [[X1:%.*]], [[I]] |
| ; CHECK-NEXT: [[UNRELATED_COND_2:%.*]] = icmp eq i32 [[X2:%.*]], [[I]] |
| ; CHECK-NEXT: [[UNRELATED_COND_3:%.*]] = icmp eq i32 [[X3:%.*]], [[I]] |
| ; CHECK-NEXT: [[UNRELATED_COND_AND_1:%.*]] = and i1 [[UNRELATED_COND_1]], [[UNRELATED_COND_2]] |
| ; CHECK-NEXT: [[GUARD_COND:%.*]] = and i1 [[UNRELATED_COND_AND_1]], [[UNRELATED_COND_3]] |
| ; CHECK-NEXT: [[WIDENABLE_COND:%.*]] = call i1 @llvm.experimental.widenable.condition() |
| ; CHECK-NEXT: [[EXIPLICIT_GUARD_COND:%.*]] = and i1 [[GUARD_COND]], [[WIDENABLE_COND]] |
| ; CHECK-NEXT: br i1 [[EXIPLICIT_GUARD_COND]], label [[GUARDED]], label [[DEOPT:%.*]], !prof !0 |
| ; |
| entry: |
| %tmp5 = icmp eq i32 %n, 0 |
| br i1 %tmp5, label %exit, label %loop.preheader |
| |
| loop.preheader: ; preds = %entry |
| br label %loop |
| |
| loop: ; preds = %guarded, %loop.preheader |
| %loop.acc = phi i32 [ %loop.acc.next, %guarded ], [ 0, %loop.preheader ] |
| %i = phi i32 [ %i.next, %guarded ], [ 0, %loop.preheader ] |
| %unrelated.cond.1 = icmp eq i32 %x1, %i |
| %unrelated.cond.2 = icmp eq i32 %x2, %i |
| %unrelated.cond.3 = icmp eq i32 %x3, %i |
| %unrelated.cond.and.1 = and i1 %unrelated.cond.1, %unrelated.cond.2 |
| %guard.cond = and i1 %unrelated.cond.and.1, %unrelated.cond.3 |
| %widenable_cond = call i1 @llvm.experimental.widenable.condition() |
| %exiplicit_guard_cond = and i1 %guard.cond, %widenable_cond |
| br i1 %exiplicit_guard_cond, label %guarded, label %deopt, !prof !0 |
| |
| deopt: ; preds = %loop |
| %deoptcall = call i32 (...) @llvm.experimental.deoptimize.i32(i32 9) [ "deopt"() ] |
| ret i32 %deoptcall |
| |
| guarded: ; preds = %loop |
| %i.i64 = zext i32 %i to i64 |
| %array.i.ptr = getelementptr inbounds i32, i32* %array, i64 %i.i64 |
| %array.i = load i32, i32* %array.i.ptr, align 4 |
| %loop.acc.next = add i32 %loop.acc, %array.i |
| %i.next = add nuw i32 %i, 1 |
| %continue = icmp ult i32 %i.next, %n |
| br i1 %continue, label %loop, label %exit |
| |
| exit: ; preds = %guarded, %entry |
| %result = phi i32 [ 0, %entry ], [ %loop.acc.next, %guarded ] |
| ret i32 %result |
| } |
| |
| define i32 @signed_loop_start_to_n_loop_variant_bound(i32* %array, i32 %x, i32 %start, i32 %n) { |
| ; CHECK-LABEL: @signed_loop_start_to_n_loop_variant_bound( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[TMP5:%.*]] = icmp sle i32 [[N:%.*]], 0 |
| ; CHECK-NEXT: br i1 [[TMP5]], label [[EXIT:%.*]], label [[LOOP_PREHEADER:%.*]] |
| ; CHECK: loop.preheader: |
| ; CHECK-NEXT: br label [[LOOP:%.*]] |
| ; CHECK: loop: |
| ; CHECK-NEXT: [[LOOP_ACC:%.*]] = phi i32 [ [[LOOP_ACC_NEXT:%.*]], [[GUARDED:%.*]] ], [ 0, [[LOOP_PREHEADER]] ] |
| ; CHECK-NEXT: [[I:%.*]] = phi i32 [ [[I_NEXT:%.*]], [[GUARDED]] ], [ [[START:%.*]], [[LOOP_PREHEADER]] ] |
| ; CHECK-NEXT: [[BOUND:%.*]] = add i32 [[I]], [[X:%.*]] |
| ; CHECK-NEXT: [[WITHIN_BOUNDS:%.*]] = icmp ult i32 [[I]], [[BOUND]] |
| ; CHECK-NEXT: [[WIDENABLE_COND:%.*]] = call i1 @llvm.experimental.widenable.condition() |
| ; CHECK-NEXT: [[EXIPLICIT_GUARD_COND:%.*]] = and i1 [[WITHIN_BOUNDS]], [[WIDENABLE_COND]] |
| ; CHECK-NEXT: br i1 [[EXIPLICIT_GUARD_COND]], label [[GUARDED]], label [[DEOPT:%.*]], !prof !0 |
| ; |
| entry: |
| %tmp5 = icmp sle i32 %n, 0 |
| br i1 %tmp5, label %exit, label %loop.preheader |
| |
| loop.preheader: ; preds = %entry |
| br label %loop |
| |
| loop: ; preds = %guarded, %loop.preheader |
| %loop.acc = phi i32 [ %loop.acc.next, %guarded ], [ 0, %loop.preheader ] |
| %i = phi i32 [ %i.next, %guarded ], [ %start, %loop.preheader ] |
| %bound = add i32 %i, %x |
| %within.bounds = icmp ult i32 %i, %bound |
| %widenable_cond = call i1 @llvm.experimental.widenable.condition() |
| %exiplicit_guard_cond = and i1 %within.bounds, %widenable_cond |
| br i1 %exiplicit_guard_cond, label %guarded, label %deopt, !prof !0 |
| |
| deopt: ; preds = %loop |
| %deoptcall = call i32 (...) @llvm.experimental.deoptimize.i32(i32 9) [ "deopt"() ] |
| ret i32 %deoptcall |
| |
| guarded: ; preds = %loop |
| %i.i64 = zext i32 %i to i64 |
| %array.i.ptr = getelementptr inbounds i32, i32* %array, i64 %i.i64 |
| %array.i = load i32, i32* %array.i.ptr, align 4 |
| %loop.acc.next = add i32 %loop.acc, %array.i |
| %i.next = add nsw i32 %i, 1 |
| %continue = icmp slt i32 %i.next, %n |
| br i1 %continue, label %loop, label %exit |
| |
| exit: ; preds = %guarded, %entry |
| %result = phi i32 [ 0, %entry ], [ %loop.acc.next, %guarded ] |
| ret i32 %result |
| } |
| |
| define i32 @signed_loop_start_to_n_non_monotonic_predicate(i32* %array, i32 %x, i32 %start, i32 %n) { |
| ; CHECK-LABEL: @signed_loop_start_to_n_non_monotonic_predicate( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[TMP5:%.*]] = icmp sle i32 [[N:%.*]], 0 |
| ; CHECK-NEXT: br i1 [[TMP5]], label [[EXIT:%.*]], label [[LOOP_PREHEADER:%.*]] |
| ; CHECK: loop.preheader: |
| ; CHECK-NEXT: br label [[LOOP:%.*]] |
| ; CHECK: loop: |
| ; CHECK-NEXT: [[LOOP_ACC:%.*]] = phi i32 [ [[LOOP_ACC_NEXT:%.*]], [[GUARDED:%.*]] ], [ 0, [[LOOP_PREHEADER]] ] |
| ; CHECK-NEXT: [[I:%.*]] = phi i32 [ [[I_NEXT:%.*]], [[GUARDED]] ], [ [[START:%.*]], [[LOOP_PREHEADER]] ] |
| ; CHECK-NEXT: [[GUARD_COND:%.*]] = icmp eq i32 [[I]], [[X:%.*]] |
| ; CHECK-NEXT: [[WIDENABLE_COND:%.*]] = call i1 @llvm.experimental.widenable.condition() |
| ; CHECK-NEXT: [[EXIPLICIT_GUARD_COND:%.*]] = and i1 [[GUARD_COND]], [[WIDENABLE_COND]] |
| ; CHECK-NEXT: br i1 [[EXIPLICIT_GUARD_COND]], label [[GUARDED]], label [[DEOPT:%.*]], !prof !0 |
| ; |
| entry: |
| %tmp5 = icmp sle i32 %n, 0 |
| br i1 %tmp5, label %exit, label %loop.preheader |
| |
| loop.preheader: ; preds = %entry |
| br label %loop |
| |
| loop: ; preds = %guarded, %loop.preheader |
| %loop.acc = phi i32 [ %loop.acc.next, %guarded ], [ 0, %loop.preheader ] |
| %i = phi i32 [ %i.next, %guarded ], [ %start, %loop.preheader ] |
| %guard.cond = icmp eq i32 %i, %x |
| %widenable_cond = call i1 @llvm.experimental.widenable.condition() |
| %exiplicit_guard_cond = and i1 %guard.cond, %widenable_cond |
| br i1 %exiplicit_guard_cond, label %guarded, label %deopt, !prof !0 |
| |
| deopt: ; preds = %loop |
| %deoptcall = call i32 (...) @llvm.experimental.deoptimize.i32(i32 9) [ "deopt"() ] |
| ret i32 %deoptcall |
| |
| guarded: ; preds = %loop |
| %i.i64 = zext i32 %i to i64 |
| %array.i.ptr = getelementptr inbounds i32, i32* %array, i64 %i.i64 |
| %array.i = load i32, i32* %array.i.ptr, align 4 |
| %loop.acc.next = add i32 %loop.acc, %array.i |
| %i.next = add nsw i32 %i, 1 |
| %continue = icmp slt i32 %i.next, %n |
| br i1 %continue, label %loop, label %exit |
| |
| exit: ; preds = %guarded, %entry |
| %result = phi i32 [ 0, %entry ], [ %loop.acc.next, %guarded ] |
| ret i32 %result |
| } |
| |
| define i32 @unsigned_loop_0_to_n_hoist_length(i32* %array, i16 %length.i16, i32 %n) { |
| ; CHECK-LABEL: @unsigned_loop_0_to_n_hoist_length( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[TMP5:%.*]] = icmp eq i32 [[N:%.*]], 0 |
| ; CHECK-NEXT: br i1 [[TMP5]], label [[EXIT:%.*]], label [[LOOP_PREHEADER:%.*]] |
| ; CHECK: loop.preheader: |
| ; CHECK-NEXT: [[TMP0:%.*]] = zext i16 [[LENGTH_I16:%.*]] to i32 |
| ; CHECK-NEXT: [[TMP1:%.*]] = icmp ule i32 [[N]], [[TMP0]] |
| ; CHECK-NEXT: [[TMP2:%.*]] = icmp ult i32 0, [[TMP0]] |
| ; CHECK-NEXT: [[TMP3:%.*]] = and i1 [[TMP2]], [[TMP1]] |
| ; CHECK-NEXT: br label [[LOOP:%.*]] |
| ; CHECK: loop: |
| ; CHECK-NEXT: [[LOOP_ACC:%.*]] = phi i32 [ [[LOOP_ACC_NEXT:%.*]], [[GUARDED:%.*]] ], [ 0, [[LOOP_PREHEADER]] ] |
| ; CHECK-NEXT: [[I:%.*]] = phi i32 [ [[I_NEXT:%.*]], [[GUARDED]] ], [ 0, [[LOOP_PREHEADER]] ] |
| ; CHECK-NEXT: [[LENGTH:%.*]] = zext i16 [[LENGTH_I16]] to i32 |
| ; CHECK-NEXT: [[WITHIN_BOUNDS:%.*]] = icmp ult i32 [[I]], [[LENGTH]] |
| ; CHECK-NEXT: [[WIDENABLE_COND:%.*]] = call i1 @llvm.experimental.widenable.condition() |
| ; CHECK-NEXT: [[EXIPLICIT_GUARD_COND:%.*]] = and i1 [[WITHIN_BOUNDS]], [[WIDENABLE_COND]] |
| ; CHECK-NEXT: [[TMP4:%.*]] = and i1 [[TMP3]], [[WIDENABLE_COND]] |
| ; CHECK-NEXT: br i1 [[TMP4]], label [[GUARDED]], label [[DEOPT:%.*]], !prof !0 |
| ; |
| entry: |
| %tmp5 = icmp eq i32 %n, 0 |
| br i1 %tmp5, label %exit, label %loop.preheader |
| |
| loop.preheader: ; preds = %entry |
| br label %loop |
| |
| loop: ; preds = %guarded, %loop.preheader |
| %loop.acc = phi i32 [ %loop.acc.next, %guarded ], [ 0, %loop.preheader ] |
| %i = phi i32 [ %i.next, %guarded ], [ 0, %loop.preheader ] |
| %length = zext i16 %length.i16 to i32 |
| %within.bounds = icmp ult i32 %i, %length |
| %widenable_cond = call i1 @llvm.experimental.widenable.condition() |
| %exiplicit_guard_cond = and i1 %within.bounds, %widenable_cond |
| br i1 %exiplicit_guard_cond, label %guarded, label %deopt, !prof !0 |
| |
| deopt: ; preds = %loop |
| %deoptcall = call i32 (...) @llvm.experimental.deoptimize.i32(i32 9) [ "deopt"() ] |
| ret i32 %deoptcall |
| |
| guarded: ; preds = %loop |
| %i.i64 = zext i32 %i to i64 |
| %array.i.ptr = getelementptr inbounds i32, i32* %array, i64 %i.i64 |
| %array.i = load i32, i32* %array.i.ptr, align 4 |
| %loop.acc.next = add i32 %loop.acc, %array.i |
| %i.next = add nuw i32 %i, 1 |
| %continue = icmp ult i32 %i.next, %n |
| br i1 %continue, label %loop, label %exit |
| |
| exit: ; preds = %guarded, %entry |
| %result = phi i32 [ 0, %entry ], [ %loop.acc.next, %guarded ] |
| ret i32 %result |
| } |
| |
| define i32 @unsigned_loop_0_to_n_cant_hoist_length(i32* %array, i32 %length, i32 %divider, i32 %n) { |
| ; CHECK-LABEL: @unsigned_loop_0_to_n_cant_hoist_length( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[TMP5:%.*]] = icmp eq i32 [[N:%.*]], 0 |
| ; CHECK-NEXT: br i1 [[TMP5]], label [[EXIT:%.*]], label [[LOOP_PREHEADER:%.*]] |
| ; CHECK: loop.preheader: |
| ; CHECK-NEXT: br label [[LOOP:%.*]] |
| ; CHECK: loop: |
| ; CHECK-NEXT: [[LOOP_ACC:%.*]] = phi i32 [ [[LOOP_ACC_NEXT:%.*]], [[GUARDED:%.*]] ], [ 0, [[LOOP_PREHEADER]] ] |
| ; CHECK-NEXT: [[I:%.*]] = phi i32 [ [[I_NEXT:%.*]], [[GUARDED]] ], [ 0, [[LOOP_PREHEADER]] ] |
| ; CHECK-NEXT: [[LENGTH_UDIV:%.*]] = udiv i32 [[LENGTH:%.*]], [[DIVIDER:%.*]] |
| ; CHECK-NEXT: [[WITHIN_BOUNDS:%.*]] = icmp ult i32 [[I]], [[LENGTH_UDIV]] |
| ; CHECK-NEXT: [[WIDENABLE_COND:%.*]] = call i1 @llvm.experimental.widenable.condition() |
| ; CHECK-NEXT: [[EXIPLICIT_GUARD_COND:%.*]] = and i1 [[WITHIN_BOUNDS]], [[WIDENABLE_COND]] |
| ; CHECK-NEXT: br i1 [[EXIPLICIT_GUARD_COND]], label [[GUARDED]], label [[DEOPT:%.*]], !prof !0 |
| ; |
| entry: |
| %tmp5 = icmp eq i32 %n, 0 |
| br i1 %tmp5, label %exit, label %loop.preheader |
| |
| loop.preheader: ; preds = %entry |
| br label %loop |
| |
| loop: ; preds = %guarded, %loop.preheader |
| %loop.acc = phi i32 [ %loop.acc.next, %guarded ], [ 0, %loop.preheader ] |
| %i = phi i32 [ %i.next, %guarded ], [ 0, %loop.preheader ] |
| %length.udiv = udiv i32 %length, %divider |
| %within.bounds = icmp ult i32 %i, %length.udiv |
| %widenable_cond = call i1 @llvm.experimental.widenable.condition() |
| %exiplicit_guard_cond = and i1 %within.bounds, %widenable_cond |
| br i1 %exiplicit_guard_cond, label %guarded, label %deopt, !prof !0 |
| |
| deopt: ; preds = %loop |
| %deoptcall = call i32 (...) @llvm.experimental.deoptimize.i32(i32 9) [ "deopt"() ] |
| ret i32 %deoptcall |
| |
| guarded: ; preds = %loop |
| %i.i64 = zext i32 %i to i64 |
| %array.i.ptr = getelementptr inbounds i32, i32* %array, i64 %i.i64 |
| %array.i = load i32, i32* %array.i.ptr, align 4 |
| %loop.acc.next = add i32 %loop.acc, %array.i |
| %i.next = add nuw i32 %i, 1 |
| %continue = icmp ult i32 %i.next, %n |
| br i1 %continue, label %loop, label %exit |
| |
| exit: ; preds = %guarded, %entry |
| %result = phi i32 [ 0, %entry ], [ %loop.acc.next, %guarded ] |
| ret i32 %result |
| } |
| |
| declare i32 @llvm.experimental.deoptimize.i32(...) |
| |
| ; Function Attrs: inaccessiblememonly nounwind |
| declare i1 @llvm.experimental.widenable.condition() #0 |
| |
| attributes #0 = { inaccessiblememonly nounwind } |
| |
| !0 = !{!"branch_weights", i32 1048576, i32 1} |
| !1 = !{i32 1, i32 -2147483648} |
