diff options
Diffstat (limited to 'test/CodeGen/Thumb2/thumb2-branch.ll')
| -rw-r--r-- | test/CodeGen/Thumb2/thumb2-branch.ll | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/test/CodeGen/Thumb2/thumb2-branch.ll b/test/CodeGen/Thumb2/thumb2-branch.ll index 1d2af7a..4d9eda0 100644 --- a/test/CodeGen/Thumb2/thumb2-branch.ll +++ b/test/CodeGen/Thumb2/thumb2-branch.ll @@ -1,4 +1,7 @@ ; RUN: llc < %s -mtriple=thumbv7-apple-darwin -mattr=+thumb2 | FileCheck %s +; If-conversion defeats the purpose of this test, which is to check conditional +; branch generation, so use memory barrier instruction to make sure it doesn't +; happen and we get actual branches. define i32 @f1(i32 %a, i32 %b, i32* %v) { entry: @@ -8,10 +11,12 @@ entry: br i1 %tmp, label %cond_true, label %return cond_true: ; preds = %entry + call void @llvm.memory.barrier(i1 true, i1 true, i1 true, i1 true, i1 false) store i32 0, i32* %v ret i32 0 return: ; preds = %entry + call void @llvm.memory.barrier(i1 true, i1 true, i1 true, i1 true, i1 false) ret i32 1 } @@ -23,10 +28,12 @@ entry: br i1 %tmp, label %cond_true, label %return cond_true: ; preds = %entry + call void @llvm.memory.barrier(i1 true, i1 true, i1 true, i1 true, i1 false) store i32 0, i32* %v ret i32 0 return: ; preds = %entry + call void @llvm.memory.barrier(i1 true, i1 true, i1 true, i1 true, i1 false) ret i32 1 } @@ -38,10 +45,12 @@ entry: br i1 %tmp, label %cond_true, label %return cond_true: ; preds = %entry + call void @llvm.memory.barrier(i1 true, i1 true, i1 true, i1 true, i1 false) store i32 0, i32* %v ret i32 0 return: ; preds = %entry + call void @llvm.memory.barrier(i1 true, i1 true, i1 true, i1 true, i1 false) ret i32 1 } @@ -53,9 +62,13 @@ entry: br i1 %tmp, label %return, label %cond_true cond_true: ; preds = %entry + call void @llvm.memory.barrier(i1 true, i1 true, i1 true, i1 true, i1 false) store i32 0, i32* %v ret i32 0 return: ; preds = %entry + call void @llvm.memory.barrier(i1 true, i1 true, i1 true, i1 true, i1 false) ret i32 1 } + +declare void @llvm.memory.barrier(i1, i1, i1, i1, i1) nounwind |