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| author | Jim Grosbach <grosbach@apple.com> | 2011-07-12 16:06:01 +0000 |
|---|---|---|
| committer | Jim Grosbach <grosbach@apple.com> | 2011-07-12 16:06:01 +0000 |
| commit | 92bf81ddd06b6ed16069fb1bf7f10a14508344d9 (patch) | |
| tree | 64e01c3d96b29bbd259b3a47b1d2afc21c5284d6 /test/CodeGen/Thumb2/thumb2-branch.ll | |
| parent | c0f33cb59006d42d9d37b02a9158e1a370fc246b (diff) | |
| download | llvm-92bf81ddd06b6ed16069fb1bf7f10a14508344d9.tar.gz llvm-92bf81ddd06b6ed16069fb1bf7f10a14508344d9.tar.bz2 llvm-92bf81ddd06b6ed16069fb1bf7f10a14508344d9.tar.xz | |
Improve test cases from r134746.
Use memory barriers to force if-conversion off for these tests instead of
the internal llc command line option ifcvt-limit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134986 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/Thumb2/thumb2-branch.ll')
| -rw-r--r-- | test/CodeGen/Thumb2/thumb2-branch.ll | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/test/CodeGen/Thumb2/thumb2-branch.ll b/test/CodeGen/Thumb2/thumb2-branch.ll index 9c6f68b343..4d9eda062f 100644 --- a/test/CodeGen/Thumb2/thumb2-branch.ll +++ b/test/CodeGen/Thumb2/thumb2-branch.ll @@ -1,6 +1,7 @@ -; RUN: llc < %s -ifcvt-limit=0 -mtriple=thumbv7-apple-darwin -mattr=+thumb2 | FileCheck %s +; 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 turn it off. +; 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: @@ -10,10 +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 } @@ -25,10 +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 } @@ -40,10 +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 } @@ -55,9 +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 |