diff options
| author | Dan Gohman <gohman@apple.com> | 2010-05-18 21:42:03 +0000 |
|---|---|---|
| committer | Dan Gohman <gohman@apple.com> | 2010-05-18 21:42:03 +0000 |
| commit | e5efbafdac9cbaaa9cac8a5c405c3bbcbf3f328d (patch) | |
| tree | 16ea3c02963035a887dcdd1ceb678b654502460a /lib/Target/X86/X86InstrInfo.cpp | |
| parent | b4e876e37e47d950034667c3bc420828d1c44457 (diff) | |
When converting a test to a cmp to fold a load, use the cmp that has an
8-bit immediate field rather than one with a wider immediate field.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104064 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/X86/X86InstrInfo.cpp')
| -rw-r--r-- | lib/Target/X86/X86InstrInfo.cpp | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/lib/Target/X86/X86InstrInfo.cpp b/lib/Target/X86/X86InstrInfo.cpp index fb3cbed336..d4ef62bece 100644 --- a/lib/Target/X86/X86InstrInfo.cpp +++ b/lib/Target/X86/X86InstrInfo.cpp @@ -2529,9 +2529,9 @@ MachineInstr* X86InstrInfo::foldMemoryOperandImpl(MachineFunction &MF, switch (MI->getOpcode()) { default: return NULL; case X86::TEST8rr: NewOpc = X86::CMP8ri; RCSize = 1; break; - case X86::TEST16rr: NewOpc = X86::CMP16ri; RCSize = 2; break; - case X86::TEST32rr: NewOpc = X86::CMP32ri; RCSize = 4; break; - case X86::TEST64rr: NewOpc = X86::CMP64ri32; RCSize = 8; break; + case X86::TEST16rr: NewOpc = X86::CMP16ri8; RCSize = 2; break; + case X86::TEST32rr: NewOpc = X86::CMP32ri8; RCSize = 4; break; + case X86::TEST64rr: NewOpc = X86::CMP64ri8; RCSize = 8; break; } // Check if it's safe to fold the load. If the size of the object is // narrower than the load width, then it's not. |