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| author | Evan Cheng <evan.cheng@apple.com> | 2008-06-16 22:52:53 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2008-06-16 22:52:53 +0000 |
| commit | b314101dc2607b3f9d2ec089e21aca408078fa45 (patch) | |
| tree | 605c91b110ba676f85140307639866b3111586c1 /test | |
| parent | cb387ac7500303eea49b38e0cbaa3c4beba91d74 (diff) | |
| download | external_llvm-b314101dc2607b3f9d2ec089e21aca408078fa45.zip external_llvm-b314101dc2607b3f9d2ec089e21aca408078fa45.tar.gz external_llvm-b314101dc2607b3f9d2ec089e21aca408078fa45.tar.bz2 | |
Do not issue identity copies.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52373 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test')
| -rw-r--r-- | test/CodeGen/X86/2008-06-16-SubregsBug.ll | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/test/CodeGen/X86/2008-06-16-SubregsBug.ll b/test/CodeGen/X86/2008-06-16-SubregsBug.ll new file mode 100644 index 0000000..75513b6 --- /dev/null +++ b/test/CodeGen/X86/2008-06-16-SubregsBug.ll @@ -0,0 +1,14 @@ +; RUN: llvm-as < %s | llc -mtriple=i386-apple-darwin | grep mov | count 4 + +define i16 @test(i16* %tmp179) nounwind { + %tmp180 = load i16* %tmp179, align 2 ; <i16> [#uses=2] + %tmp184 = and i16 %tmp180, -1024 ; <i16> [#uses=1] + %tmp186 = icmp eq i16 %tmp184, -32768 ; <i1> [#uses=1] + br i1 %tmp186, label %bb189, label %bb288 + +bb189: ; preds = %0 + ret i16 %tmp180 + +bb288: ; preds = %0 + ret i16 32 +} |