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| author | Evan Cheng <evan.cheng@apple.com> | 2009-01-17 07:09:27 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2009-01-17 07:09:27 +0000 |
| commit | 8e278266494c71471bfd7c29cccfcdcef433a4ba (patch) | |
| tree | e017f922a0d29c74241a991522ce738c35f8d12b /test/CodeGen/X86/lea-4.ll | |
| parent | 7ab24506746a25959b67caffa4b18d5fb62a60d2 (diff) | |
| download | external_llvm-8e278266494c71471bfd7c29cccfcdcef433a4ba.zip external_llvm-8e278266494c71471bfd7c29cccfcdcef433a4ba.tar.gz external_llvm-8e278266494c71471bfd7c29cccfcdcef433a4ba.tar.bz2 | |
Fix MatchAddress bug that's preventing negative displacement from being folded in 64-bit mode.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62413 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/X86/lea-4.ll')
| -rw-r--r-- | test/CodeGen/X86/lea-4.ll | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/test/CodeGen/X86/lea-4.ll b/test/CodeGen/X86/lea-4.ll new file mode 100644 index 0000000..8f0835f --- /dev/null +++ b/test/CodeGen/X86/lea-4.ll @@ -0,0 +1,19 @@ +; RUN: llvm-as < %s | llc -march=x86-64 | grep lea | count 2 + +define zeroext i16 @t1(i32 %on_off) nounwind { +entry: + %0 = sub i32 %on_off, 1 + %1 = mul i32 %0, 2 + %2 = trunc i32 %1 to i16 + %3 = zext i16 %2 to i32 + %4 = trunc i32 %3 to i16 + ret i16 %4 +} + +define i32 @t2(i32 %on_off) nounwind { +entry: + %0 = sub i32 %on_off, 1 + %1 = mul i32 %0, 2 + %2 = and i32 %1, 65535 + ret i32 %2 +} |