30 lines · plain
1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py2; RUN: opt -S -passes=gvn -o - %s | FileCheck %s3 4define i32 @foo(i1 %cond) {5; CHECK-LABEL: @foo(6; CHECK-NEXT: entry:7; CHECK-NEXT: [[V0:%.*]] = call i32 @llvm.convergent()8; CHECK-NEXT: br i1 [[COND:%.*]], label [[BODY:%.*]], label [[END:%.*]]9; CHECK: body:10; CHECK-NEXT: [[V1:%.*]] = call i32 @llvm.convergent()11; CHECK-NEXT: br label [[END]]12; CHECK: end:13; CHECK-NEXT: [[RET:%.*]] = phi i32 [ [[V0]], [[ENTRY:%.*]] ], [ [[V1]], [[BODY]] ]14; CHECK-NEXT: ret i32 [[RET]]15;16entry:17 %v0 = call i32 @llvm.convergent()18 br i1 %cond, label %body, label %end19 20body:21 %v1 = call i32 @llvm.convergent()22 br label %end23 24end:25 %ret = phi i32 [ %v0, %entry ], [ %v1, %body ]26 ret i32 %ret27}28 29declare i32 @llvm.convergent() convergent nounwind readnone willreturn30