diff options
| author | Daniel Dunbar <daniel@zuster.org> | 2010-03-13 00:47:29 +0000 |
|---|---|---|
| committer | Daniel Dunbar <daniel@zuster.org> | 2010-03-13 00:47:29 +0000 |
| commit | d5e7705a05947e60806b795880f09757e835f590 (patch) | |
| tree | 5831eb07bacff2c3f0326b143f88386400554258 | |
| parent | 69c695ee472853fa1ee93a94f00ef2a14bf18a66 (diff) | |
MC/X86: Add temporary hack to match shrl $1,%eax correctly, to support testing
other functionality on 403.gcc compiled at -O0.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98405 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/Target/X86/AsmParser/X86AsmParser.cpp | 9 | ||||
| -rw-r--r-- | test/MC/AsmParser/X86/x86_32-new-encoder.s | 3 |
2 files changed, 12 insertions, 0 deletions
diff --git a/lib/Target/X86/AsmParser/X86AsmParser.cpp b/lib/Target/X86/AsmParser/X86AsmParser.cpp index 84d7bb7a6f..dde86fbbe4 100644 --- a/lib/Target/X86/AsmParser/X86AsmParser.cpp +++ b/lib/Target/X86/AsmParser/X86AsmParser.cpp @@ -542,6 +542,15 @@ ParseInstruction(const StringRef &Name, SMLoc NameLoc, } } + // FIXME: Hack to handle recognizing s{hr,ar,hl}? $1. + if ((Name.startswith("shr") || Name.startswith("sar") || + Name.startswith("shl")) && + Operands.size() == 3 && + static_cast<X86Operand*>(Operands[1])->isImm() && + isa<MCConstantExpr>(static_cast<X86Operand*>(Operands[1])->getImm()) && + cast<MCConstantExpr>(static_cast<X86Operand*>(Operands[1])->getImm())->getValue() == 1) + Operands.erase(Operands.begin() + 1); + return false; } diff --git a/test/MC/AsmParser/X86/x86_32-new-encoder.s b/test/MC/AsmParser/X86/x86_32-new-encoder.s index d4e3be4bd2..c00007fd16 100644 --- a/test/MC/AsmParser/X86/x86_32-new-encoder.s +++ b/test/MC/AsmParser/X86/x86_32-new-encoder.s @@ -47,3 +47,6 @@ rdtscp // CHECK: addw %ax, %ax # encoding: [0x66,0x01,0xc0] addw %ax, %ax + +// CHECK: shrl %eax # encoding: [0xd1,0xe8] + shrl $1, %eax |