| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; RUN: opt -S -guard-widening-widen-branch-guards=true -passes=guard-widening < %s | FileCheck %s |
| ; RUN: opt -S -guard-widening-widen-branch-guards=true -passes=guard-widening < %s | FileCheck %s |
| |
| ; Interaction between intrinsic and widenable condition guards. |
| |
| declare void @llvm.experimental.guard(i1,...) |
| |
| declare void @llvm.experimental.deoptimize.isVoid(...) |
| |
| ; Function Attrs: inaccessiblememonly nounwind |
| declare i1 @llvm.experimental.widenable.condition() #0 |
| |
| ; Widen condition of intrinsic guard with a condition from widenable branch. |
| define void @test_01(i1 %cond_0, i1 %cond_1) { |
| ; CHECK-LABEL: @test_01( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[COND_1_GW_FR:%.*]] = freeze i1 [[COND_1:%.*]] |
| ; CHECK-NEXT: [[WIDE_CHK:%.*]] = and i1 [[COND_0:%.*]], [[COND_1_GW_FR]] |
| ; CHECK-NEXT: call void (i1, ...) @llvm.experimental.guard(i1 [[WIDE_CHK]]) [ "deopt"() ] |
| ; CHECK-NEXT: [[WIDENABLE_COND3:%.*]] = call i1 @llvm.experimental.widenable.condition() |
| ; CHECK-NEXT: [[EXIPLICIT_GUARD_COND4:%.*]] = and i1 [[COND_1_GW_FR]], [[WIDENABLE_COND3]] |
| ; CHECK-NEXT: br i1 true, label [[GUARDED1:%.*]], label [[DEOPT2:%.*]], !prof [[PROF0:![0-9]+]] |
| ; CHECK: deopt2: |
| ; CHECK-NEXT: call void (...) @llvm.experimental.deoptimize.isVoid() [ "deopt"() ] |
| ; CHECK-NEXT: ret void |
| ; CHECK: guarded1: |
| ; CHECK-NEXT: ret void |
| ; |
| entry: |
| call void (i1, ...) @llvm.experimental.guard(i1 %cond_0) [ "deopt"() ] |
| %widenable_cond3 = call i1 @llvm.experimental.widenable.condition() |
| %exiplicit_guard_cond4 = and i1 %cond_1, %widenable_cond3 |
| br i1 %exiplicit_guard_cond4, label %guarded1, label %deopt2, !prof !0 |
| |
| deopt2: ; preds = %guarded |
| call void (...) @llvm.experimental.deoptimize.isVoid() [ "deopt"() ] |
| ret void |
| |
| guarded1: ; preds = %guarded |
| ret void |
| } |
| |
| ; Widen condition of widenable condition guard with a condition from intrinsic. |
| define void @test_02(i1 %cond_0, i1 %cond_1) { |
| ; CHECK-LABEL: @test_02( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[COND_1_GW_FR:%.*]] = freeze i1 [[COND_1:%.*]] |
| ; CHECK-NEXT: [[WIDE_CHK:%.*]] = and i1 [[COND_0:%.*]], [[COND_1_GW_FR]] |
| ; CHECK-NEXT: [[WIDENABLE_COND:%.*]] = call i1 @llvm.experimental.widenable.condition() |
| ; CHECK-NEXT: [[EXIPLICIT_GUARD_COND:%.*]] = and i1 [[WIDE_CHK]], [[WIDENABLE_COND]] |
| ; CHECK-NEXT: br i1 [[EXIPLICIT_GUARD_COND]], label [[GUARDED:%.*]], label [[DEOPT:%.*]], !prof [[PROF0]] |
| ; CHECK: deopt: |
| ; CHECK-NEXT: call void (...) @llvm.experimental.deoptimize.isVoid() [ "deopt"() ] |
| ; CHECK-NEXT: ret void |
| ; CHECK: guarded: |
| ; CHECK-NEXT: ret void |
| ; |
| entry: |
| %widenable_cond = call i1 @llvm.experimental.widenable.condition() |
| %exiplicit_guard_cond = and i1 %cond_0, %widenable_cond |
| br i1 %exiplicit_guard_cond, label %guarded, label %deopt, !prof !0 |
| |
| deopt: ; preds = %entry |
| call void (...) @llvm.experimental.deoptimize.isVoid() [ "deopt"() ] |
| ret void |
| |
| guarded: ; preds = %entry |
| call void (i1, ...) @llvm.experimental.guard(i1 %cond_1) [ "deopt"() ] |
| ret void |
| } |
| |
| attributes #0 = { inaccessiblememonly nounwind } |
| |
| !0 = !{!"branch_weights", i32 1048576, i32 1} |