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have the mc lowering process handle a few tail call forms, lowering them to

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jumps where possible and turning the TAILCALL marker in the instruction
asm string into a proper comment.

This eliminates a FIXME and is on the path to finishing:
rdar://7639610 - eliminate encoding and asm info for TAILJMPd TAILJMPr TAILJMPn, etc.

However, I can't eliminate the encodings for these instructions because the JIT
still exists and has its own copy of the encoder, sigh.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107946 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2010-07-09 00:49:41 +00:00
parent a0148c360e
commit c5f5626a29
3 changed files with 19 additions and 13 deletions
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lib/Target/X86/X86AsmBackend.cpp
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@@ -77,7 +77,6 @@ static unsigned getRelaxedOpcode(unsigned Op) {
case X86::JG_1: return X86::JG_4;
case X86::JLE_1: return X86::JLE_4;
case X86::JL_1: return X86::JL_4;
case X86::TAILJMP_1:
case X86::JMP_1: return X86::JMP_4;
case X86::JNE_1: return X86::JNE_4;
case X86::JNO_1: return X86::JNO_4;