diff options
Diffstat (limited to 'llvm')
| -rw-r--r-- | llvm/test/Transforms/SimplifyCFG/PR30210.ll | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/llvm/test/Transforms/SimplifyCFG/PR30210.ll b/llvm/test/Transforms/SimplifyCFG/PR30210.ll new file mode 100644 index 00000000000..a2aa8256831 --- /dev/null +++ b/llvm/test/Transforms/SimplifyCFG/PR30210.ll @@ -0,0 +1,36 @@ +; RUN: opt -S -simplifycfg < %s | FileCheck %s +target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" +target triple = "x86_64-unknown-linux-gnu" + +declare i32* @fn1(i32* returned) + +define i32 @test1(i1 %B) { +entry: + br label %for.cond.us + +for.cond.us: ; preds = %for.cond.us, %entry + br i1 %B, label %for.cond4.preheader, label %for.cond.us + +for.cond4.preheader: ; preds = %for.cond.us + br i1 %B, label %for.cond4.preheader.split.us, label %for.cond4 + +for.cond4.preheader.split.us: ; preds = %for.cond4.preheader + unreachable + +for.cond4: ; preds = %for.end, %for.cond4.preheader + %phi = phi i32* [ %call, %for.end ], [ undef, %for.cond4.preheader ] + %call = call i32* @fn1(i32* %phi) + br label %for.cond5 + +for.cond5: ; preds = %for.cond5, %for.cond4 + br i1 %B, label %for.cond5, label %for.end + +for.end: ; preds = %for.cond5 + %load = load i32, i32* %call, align 4 + br label %for.cond4 +} + +; CHECK-LABEL: define i32 @test1( +; CHECK: br label %[[LABEL:.*]] +; CHECK: [[LABEL]]: +; CHECK: br label %[[LABEL]] |
