| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; RUN: opt -consthoist -S < %s | FileCheck %s |
| target triple = "x86_64--" |
| |
| ; We don't want to convert constant divides because the benefit from converting |
| ; them to a mul in the backend is larget than constant materialization savings. |
| define void @signed_const_division(i64 %in1, i64 %in2, i64* %addr) { |
| ; CHECK-LABEL: @signed_const_division( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: br label [[LOOP:%.*]] |
| ; CHECK: loop: |
| ; CHECK-NEXT: [[L1:%.*]] = phi i64 [ [[RES1:%.*]], [[LOOP]] ], [ [[IN1:%.*]], [[ENTRY:%.*]] ] |
| ; CHECK-NEXT: [[L2:%.*]] = phi i64 [ [[RES2:%.*]], [[LOOP]] ], [ [[IN2:%.*]], [[ENTRY]] ] |
| ; CHECK-NEXT: [[RES1]] = sdiv i64 [[L1]], 4294967296 |
| ; CHECK-NEXT: store volatile i64 [[RES1]], i64* [[ADDR:%.*]] |
| ; CHECK-NEXT: [[RES2]] = srem i64 [[L2]], 4294967296 |
| ; CHECK-NEXT: store volatile i64 [[RES2]], i64* [[ADDR]] |
| ; CHECK-NEXT: [[AGAIN:%.*]] = icmp eq i64 [[RES1]], [[RES2]] |
| ; CHECK-NEXT: br i1 [[AGAIN]], label [[LOOP]], label [[END:%.*]] |
| ; CHECK: end: |
| ; CHECK-NEXT: ret void |
| ; |
| entry: |
| br label %loop |
| |
| loop: |
| %l1 = phi i64 [%res1, %loop], [%in1, %entry] |
| %l2 = phi i64 [%res2, %loop], [%in2, %entry] |
| %res1 = sdiv i64 %l1, 4294967296 |
| store volatile i64 %res1, i64* %addr |
| %res2 = srem i64 %l2, 4294967296 |
| store volatile i64 %res2, i64* %addr |
| %again = icmp eq i64 %res1, %res2 |
| br i1 %again, label %loop, label %end |
| |
| end: |
| ret void |
| } |
| |
| define void @unsigned_const_division(i64 %in1, i64 %in2, i64* %addr) { |
| ; CHECK-LABEL: @unsigned_const_division( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: br label [[LOOP:%.*]] |
| ; CHECK: loop: |
| ; CHECK-NEXT: [[L1:%.*]] = phi i64 [ [[RES1:%.*]], [[LOOP]] ], [ [[IN1:%.*]], [[ENTRY:%.*]] ] |
| ; CHECK-NEXT: [[L2:%.*]] = phi i64 [ [[RES2:%.*]], [[LOOP]] ], [ [[IN2:%.*]], [[ENTRY]] ] |
| ; CHECK-NEXT: [[RES1]] = udiv i64 [[L1]], 4294967296 |
| ; CHECK-NEXT: store volatile i64 [[RES1]], i64* [[ADDR:%.*]] |
| ; CHECK-NEXT: [[RES2]] = urem i64 [[L2]], 4294967296 |
| ; CHECK-NEXT: store volatile i64 [[RES2]], i64* [[ADDR]] |
| ; CHECK-NEXT: [[AGAIN:%.*]] = icmp eq i64 [[RES1]], [[RES2]] |
| ; CHECK-NEXT: br i1 [[AGAIN]], label [[LOOP]], label [[END:%.*]] |
| ; CHECK: end: |
| ; CHECK-NEXT: ret void |
| ; |
| |
| entry: |
| br label %loop |
| |
| loop: |
| %l1 = phi i64 [%res1, %loop], [%in1, %entry] |
| %l2 = phi i64 [%res2, %loop], [%in2, %entry] |
| %res1 = udiv i64 %l1, 4294967296 |
| store volatile i64 %res1, i64* %addr |
| %res2 = urem i64 %l2, 4294967296 |
| store volatile i64 %res2, i64* %addr |
| %again = icmp eq i64 %res1, %res2 |
| br i1 %again, label %loop, label %end |
| |
| end: |
| ret void |
| } |
| |
| define i32 @PR40934() { |
| ; CHECK-LABEL: @PR40934( |
| ; CHECK-NEXT: ret i32 undef |
| ; CHECK: bb: |
| ; CHECK-NEXT: [[T2:%.*]] = call i32 (i64, ...) bitcast (i32 (...)* @d to i32 (i64, ...)*)(i64 7788015061) |
| ; CHECK-NEXT: [[T3:%.*]] = and i64 [[T3]], 7788015061 |
| ; CHECK-NEXT: br label [[BB:%.*]] |
| ; |
| ret i32 undef |
| |
| bb: |
| %t2 = call i32 (i64, ...) bitcast (i32 (...)* @d to i32 (i64, ...)*)(i64 7788015061) |
| %t3 = and i64 %t3, 7788015061 |
| br label %bb |
| } |
| |
| declare i32 @d(...) |
| |
| define i32 @PR40930() { |
| ; CHECK-LABEL: @PR40930( |
| ; CHECK-NEXT: bb: |
| ; CHECK-NEXT: [[TMP:%.*]] = alloca i32, align 4 |
| ; CHECK-NEXT: br label [[BB1:%.*]] |
| ; CHECK: bb1: |
| ; CHECK-NEXT: br label [[BB2:%.*]] |
| ; CHECK: bb2: |
| ; CHECK-NEXT: br label [[BB2]] |
| ; CHECK: bb3: |
| ; CHECK-NEXT: [[TMP4:%.*]] = call i32 (i64, i64, ...) bitcast (i32 (...)* @c to i32 (i64, i64, ...)*)(i64 4208870971, i64 4208870971) |
| ; CHECK-NEXT: br label [[BB1]] |
| ; CHECK: bb5: |
| ; CHECK-NEXT: [[TMP6:%.*]] = load i32, i32* [[TMP]], align 4 |
| ; CHECK-NEXT: ret i32 [[TMP6]] |
| ; |
| bb: |
| %tmp = alloca i32, align 4 |
| br label %bb1 |
| |
| bb1: ; preds = %bb3, %bb |
| br label %bb2 |
| |
| bb2: ; preds = %bb2, %bb1 |
| br label %bb2 |
| |
| bb3: ; No predecessors! |
| %tmp4 = call i32 (i64, i64, ...) bitcast (i32 (...)* @c to i32 (i64, i64, ...)*)(i64 4208870971, i64 4208870971) |
| br label %bb1 |
| |
| bb5: ; No predecessors! |
| %tmp6 = load i32, i32* %tmp, align 4 |
| ret i32 %tmp6 |
| } |
| |
| declare i32 @c(...) |