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| author | Evan Cheng <evan.cheng@apple.com> | 2009-03-23 08:01:15 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2009-03-23 08:01:15 +0000 |
| commit | fb11288109329cb736d9f49769581a0d0c23fe19 (patch) | |
| tree | c2d5d369ef2db0b2fab9a7fc0aa4fbbb6a98a9c5 /test/CodeGen/X86/2008-02-20-InlineAsmClobber.ll | |
| parent | 7d6d4b360fb8c1895b57eeb1284e792f953ea7ee (diff) | |
| download | llvm-fb11288109329cb736d9f49769581a0d0c23fe19.tar.gz llvm-fb11288109329cb736d9f49769581a0d0c23fe19.tar.bz2 llvm-fb11288109329cb736d9f49769581a0d0c23fe19.tar.xz | |
Model inline asm constraint which ties an input to an output register as machine operand TIED_TO constraint. This eliminated the need to pre-allocate registers for these. This also allows register allocator can eliminate the unneeded copies.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67512 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/X86/2008-02-20-InlineAsmClobber.ll')
| -rw-r--r-- | test/CodeGen/X86/2008-02-20-InlineAsmClobber.ll | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/test/CodeGen/X86/2008-02-20-InlineAsmClobber.ll b/test/CodeGen/X86/2008-02-20-InlineAsmClobber.ll index d49d5bf9f9..557d00c629 100644 --- a/test/CodeGen/X86/2008-02-20-InlineAsmClobber.ll +++ b/test/CodeGen/X86/2008-02-20-InlineAsmClobber.ll @@ -1,5 +1,5 @@ -; RUN: llvm-as < %s | llc | grep {a: %ecx %ecx} -; RUN: llvm-as < %s | llc | grep {b: %ecx %edx %ecx} +; RUN: llvm-as < %s | llc | grep {a:} | not grep ax +; RUN: llvm-as < %s | llc | grep {b:} | not grep ax ; PR2078 ; The clobber list says that "ax" is clobbered. Make sure that eax isn't ; allocated to the input/output register. |