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authorChris Lattner <sabre@nondot.org>2010-02-12 01:06:22 +0000
committerChris Lattner <sabre@nondot.org>2010-02-12 01:06:22 +0000
commitc4d3f662fc2e907ea2c76aca8ec1971e43f89c98 (patch)
tree3ff3b094cace7f979fcdb656ad8159b040628486 /lib
parent6ae7bbb5ea15ec11fa516fc920719f5d9c1abb00 (diff)
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fix the encodings of monitor and mwait, which were completely
busted in both encoders. I'm not bothering to fix it in the old one at this point. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95947 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib')
-rw-r--r--lib/Target/X86/X86MCCodeEmitter.cpp9
1 files changed, 2 insertions, 7 deletions
diff --git a/lib/Target/X86/X86MCCodeEmitter.cpp b/lib/Target/X86/X86MCCodeEmitter.cpp
index 5d745d2..898592e 100644
--- a/lib/Target/X86/X86MCCodeEmitter.cpp
+++ b/lib/Target/X86/X86MCCodeEmitter.cpp
@@ -542,14 +542,9 @@ EncodeInstruction(const MCInst &MI, raw_ostream &OS,
// FIXME: This is terrible, they should get proper encoding bits in TSFlags.
if (Opcode == X86::LFENCE || Opcode == X86::MFENCE ||
Opcode == X86::MONITOR || Opcode == X86::MWAIT) {
- EmitByte(ModRMByte(3, (TSFlags & X86II::FormMask)-X86II::MRM0r, 0),
+ EmitByte(ModRMByte(3, (TSFlags & X86II::FormMask)-X86II::MRM0r,
+ Opcode == X86::MWAIT),
CurByte, OS);
-
- switch (Opcode) {
- default: break;
- case X86::MONITOR: EmitByte(0xC8, CurByte, OS); break;
- case X86::MWAIT: EmitByte(0xC9, CurByte, OS); break;
- }
} else {
EmitRegModRMByte(MI.getOperand(CurOp++),
(TSFlags & X86II::FormMask)-X86II::MRM0r,