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| author | Chris Lattner <sabre@nondot.org> | 2010-09-22 06:26:39 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2010-09-22 06:26:39 +0000 |
| commit | 415624cf3f2b6a161499bff39cb6f5ad08ee992e (patch) | |
| tree | 423787081d8cc8dd72942445c439fba31ecfd7d8 /llvm/lib | |
| parent | 775e635b5ab2370b4ff0b412c50b13bad85a27b9 (diff) | |
| download | bcm5719-llvm-415624cf3f2b6a161499bff39cb6f5ad08ee992e.tar.gz bcm5719-llvm-415624cf3f2b6a161499bff39cb6f5ad08ee992e.zip | |
fix rdar://8456371 - Handle commutable instructions written backward.
llvm-svn: 114536
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/Target/X86/AsmParser/X86AsmParser.cpp | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/llvm/lib/Target/X86/AsmParser/X86AsmParser.cpp b/llvm/lib/Target/X86/AsmParser/X86AsmParser.cpp index bb6e05c2864..01ccc50adf9 100644 --- a/llvm/lib/Target/X86/AsmParser/X86AsmParser.cpp +++ b/llvm/lib/Target/X86/AsmParser/X86AsmParser.cpp @@ -911,6 +911,16 @@ ParseInstruction(StringRef Name, SMLoc NameLoc, Operands.erase(Operands.begin() + 2); } + // FIXME: Hack to handle "f{mul*,add*} st(0), $op" the same as + // "f{mul*,add*} $op", since they commute. + if ((Name.startswith("fmul") || Name.startswith("fadd")) && + Operands.size() == 3 && + static_cast<X86Operand*>(Operands[1])->isReg() && + static_cast<X86Operand*>(Operands[1])->getReg() == X86::ST0) { + delete Operands[1]; + Operands.erase(Operands.begin() + 1); + } + // FIXME: Hack to handle "imul <imm>, B" which is an alias for "imul <imm>, B, // B". if (Name.startswith("imul") && Operands.size() == 3 && |
