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| author | Craig Topper <craig.topper@intel.com> | 2018-01-16 06:07:16 +0000 |
|---|---|---|
| committer | Craig Topper <craig.topper@intel.com> | 2018-01-16 06:07:16 +0000 |
| commit | 7a0c601f95fcf07346c295298671d439e88e9ef6 (patch) | |
| tree | 246fedf598540d86f1323a1d3eba458dc035eae5 /llvm/utils/TableGen/X86RecognizableInstr.cpp | |
| parent | daa385f480c640599f1983fec6f203752f9c05e3 (diff) | |
| download | bcm5719-llvm-7a0c601f95fcf07346c295298671d439e88e9ef6.tar.gz bcm5719-llvm-7a0c601f95fcf07346c295298671d439e88e9ef6.zip | |
[X86] Revisit the fix I made years ago to make 'xchgl %eax, %eax' not encode using the 0x90 encoding in 64-bit mode.
Prior to this we had a separate instruction and register class that excluded eax to prevent matching the instruction that would encode with 0x90.
This patch changes this to just use an InstAlias to force xchgl %eax, %eax to use XCHG32rr instruction in 64-bit mode. This gets rid of the separate instruction and register class.
llvm-svn: 322532
Diffstat (limited to 'llvm/utils/TableGen/X86RecognizableInstr.cpp')
| -rw-r--r-- | llvm/utils/TableGen/X86RecognizableInstr.cpp | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/llvm/utils/TableGen/X86RecognizableInstr.cpp b/llvm/utils/TableGen/X86RecognizableInstr.cpp index 9afdd7e0963..81cd12f92a5 100644 --- a/llvm/utils/TableGen/X86RecognizableInstr.cpp +++ b/llvm/utils/TableGen/X86RecognizableInstr.cpp @@ -927,7 +927,6 @@ OperandType RecognizableInstr::typeFromString(const std::string &s, TYPE("VK32WM", TYPE_VK) TYPE("VK64", TYPE_VK) TYPE("VK64WM", TYPE_VK) - TYPE("GR32_NOAX", TYPE_Rv) TYPE("vx64mem", TYPE_MVSIBX) TYPE("vx128mem", TYPE_MVSIBX) TYPE("vx256mem", TYPE_MVSIBX) @@ -1195,7 +1194,6 @@ RecognizableInstr::opcodeModifierEncodingFromString(const std::string &s, ENCODING("GR64", ENCODING_RO) ENCODING("GR16", ENCODING_Rv) ENCODING("GR8", ENCODING_RB) - ENCODING("GR32_NOAX", ENCODING_Rv) errs() << "Unhandled opcode modifier encoding " << s << "\n"; llvm_unreachable("Unhandled opcode modifier encoding"); } |
