src/x64/disasm-x64.cc - Issue 23112016: Drop unused rdtsc instruction.

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Unified Diff: src/x64/disasm-x64.cc

Issue 23112016: Drop unused rdtsc instruction. (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge

Patch Set: Created 7 years, 4 months ago

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Index: src/x64/disasm-x64.cc

diff --git a/src/x64/disasm-x64.cc b/src/x64/disasm-x64.cc

index eefa70372ec4c8ac344665cecb6c52d16479e99d..e9ace153c4e26522d8db258e73b4a32d95980c8d 100644

--- a/src/x64/disasm-x64.cc

+++ b/src/x64/disasm-x64.cc

@@ -1229,8 +1229,8 @@ int DisassemblerX64::TwoByteOpcodeInstruction(byte* data) {

current += PrintRightXMMOperand(current);

AppendToBuffer(", %s", NameOfXMMRegister(regop));

- } else if (opcode == 0xA2 || opcode == 0x31) {

- // RDTSC or CPUID

+ } else if (opcode == 0xA2) {

+ // CPUID

AppendToBuffer("%s", mnemonic);

} else if ((opcode & 0xF0) == 0x40) {

@@ -1294,8 +1294,6 @@ const char* DisassemblerX64::TwoByteMnemonic(byte opcode) {

return "nop";

case 0x2A: // F2/F3 prefix.

return "cvtsi2s";

- case 0x31:

- return "rdtsc";

case 0x51: // F2 prefix.

return "sqrtsd";

case 0x58: // F2 prefix.

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