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| author | Dan Gohman <gohman@apple.com> | 2008-10-01 18:28:06 +0000 |
|---|---|---|
| committer | Dan Gohman <gohman@apple.com> | 2008-10-01 18:28:06 +0000 |
| commit | 01c9f7734ce4b06749c0b7c7bd324d373ea38d96 (patch) | |
| tree | 71abdaf9863d88f5ea3710ebcd04d097cd9a2c4e /lib/Target/X86/X86FastISel.cpp | |
| parent | b98d7197d674a5435545acc691236f46eb2ee97b (diff) | |
| download | external_llvm-01c9f7734ce4b06749c0b7c7bd324d373ea38d96.zip external_llvm-01c9f7734ce4b06749c0b7c7bd324d373ea38d96.tar.gz external_llvm-01c9f7734ce4b06749c0b7c7bd324d373ea38d96.tar.bz2 | |
Split x86's ADJCALLSTACK instructions into 32-bit and 64-bit forms.
This allows the 64-bit forms to use+def RSP instead of ESP. This
doesn't fix any real bugs today, but it is more precise and it
makes the debug dumps on x86-64 look more consistent.
Also, add some comments describing the CALL instructions' physreg
operand uses and defs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56925 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/X86/X86FastISel.cpp')
| -rw-r--r-- | lib/Target/X86/X86FastISel.cpp | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/lib/Target/X86/X86FastISel.cpp b/lib/Target/X86/X86FastISel.cpp index 74850da..59500ad 100644 --- a/lib/Target/X86/X86FastISel.cpp +++ b/lib/Target/X86/X86FastISel.cpp @@ -960,7 +960,8 @@ bool X86FastISel::X86SelectCall(Instruction *I) { unsigned NumBytes = CCInfo.getNextStackOffset(); // Issue CALLSEQ_START - BuildMI(MBB, TII.get(X86::ADJCALLSTACKDOWN)).addImm(NumBytes); + unsigned AdjStackDown = TM.getRegisterInfo()->getCallFrameSetupOpcode(); + BuildMI(MBB, TII.get(AdjStackDown)).addImm(NumBytes); // Process argumenet: walk the register/memloc assignments, inserting // copies / loads. @@ -1051,7 +1052,8 @@ bool X86FastISel::X86SelectCall(Instruction *I) { } // Issue CALLSEQ_END - BuildMI(MBB, TII.get(X86::ADJCALLSTACKUP)).addImm(NumBytes).addImm(0); + unsigned AdjStackUp = TM.getRegisterInfo()->getCallFrameDestroyOpcode(); + BuildMI(MBB, TII.get(AdjStackUp)).addImm(NumBytes).addImm(0); // Now handle call return value (if any). if (RetVT.getSimpleVT() != MVT::isVoid) { |