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| author | Dan Gohman <gohman@apple.com> | 2009-04-03 20:11:30 +0000 |
|---|---|---|
| committer | Dan Gohman <gohman@apple.com> | 2009-04-03 20:11:30 +0000 |
| commit | f50c7981ae9b81f1212d72a06d1c05e20d0559af (patch) | |
| tree | 5ccb8a1549f1e7a872775012c3b4ee6bdd81fb0b /test/CodeGen/X86/and-su.ll | |
| parent | 38f4dd7b5e333aee8f89cee85d1c79378fee0ffc (diff) | |
| download | llvm-f50c7981ae9b81f1212d72a06d1c05e20d0559af.tar.gz llvm-f50c7981ae9b81f1212d72a06d1c05e20d0559af.tar.bz2 llvm-f50c7981ae9b81f1212d72a06d1c05e20d0559af.tar.xz | |
Fix a TargetLowering optimization so that it doesn't duplicate
loads when an input node has multiple uses.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68398 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/X86/and-su.ll')
| -rw-r--r-- | test/CodeGen/X86/and-su.ll | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/test/CodeGen/X86/and-su.ll b/test/CodeGen/X86/and-su.ll new file mode 100644 index 0000000000..bdc845448f --- /dev/null +++ b/test/CodeGen/X86/and-su.ll @@ -0,0 +1,16 @@ +; RUN: llvm-as < %s | llc -march=x86 | grep {(%} | count 1 + +; Don't duplicate the load. + +define fastcc i32 @foo(i32* %p) nounwind { + %t0 = load i32* %p + %t2 = and i32 %t0, 10 + %t3 = icmp ne i32 %t2, 0 + br i1 %t3, label %bb63, label %bb76 + +bb63: + ret i32 %t2 + +bb76: + ret i32 0 +} |