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| author | Chris Lattner <sabre@nondot.org> | 2005-05-15 05:49:58 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2005-05-15 05:49:58 +0000 |
| commit | 5fae9ccd399e6fc7fc94d89a1adda517c12ed64b (patch) | |
| tree | 18b93c88df4da9c866ffc52dd42fe61cc1e78be5 | |
| parent | 381e88799ec4ba0ccf194fcce99542a0b4852da1 (diff) | |
| download | external_llvm-5fae9ccd399e6fc7fc94d89a1adda517c12ed64b.zip external_llvm-5fae9ccd399e6fc7fc94d89a1adda517c12ed64b.tar.gz external_llvm-5fae9ccd399e6fc7fc94d89a1adda517c12ed64b.tar.bz2 | |
Teach reginfo how to deal with ADJSTACKPTRri, allowing us to generate:
add %ESP, 20
jmp %EDX # TAIL CALL
instead of:
add %ESP, -8
add %ESP, 28
jmp %EDX # TAIL CALL
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22047 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/Target/X86/X86RegisterInfo.cpp | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/Target/X86/X86RegisterInfo.cpp b/lib/Target/X86/X86RegisterInfo.cpp index a1ec6dc..08920cc 100644 --- a/lib/Target/X86/X86RegisterInfo.cpp +++ b/lib/Target/X86/X86RegisterInfo.cpp @@ -544,6 +544,9 @@ void X86RegisterInfo::emitEpilogue(MachineFunction &MF, PI->getOperand(0).getReg() == X86::ESP) { NumBytes -= PI->getOperand(1).getImmedValue(); MBB.erase(PI); + } else if (PI->getOpcode() == X86::ADJSTACKPTRri) { + NumBytes += PI->getOperand(1).getImmedValue(); + MBB.erase(PI); } } |