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Insert dummy ED table entries for pseudo-instructions.

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The table is indexed by opcode, so simply removing pseudo-instructions
creates a wrong mapping from opcode to table entry.

Add a test case for xorps which has a very high opcode that exposes this
problem.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141562 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jakob Stoklund Olesen 2011-10-10 18:30:16 +00:00
parent eba564ceac
commit a0ed0c0fcd
2 changed files with 7 additions and 3 deletions
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4
test/MC/Disassembler/X86/enhanced.txt
View File

@ -4,3 +4,7 @@
0x0f 0x85 0xf6 0xff 0xff 0xff
# CHECK: [o:movq][w: ][1-r:%gs=r63][1-p::][1-l:8=8][p:,][w: ][0-r:%rcx=r108] <mov> 0:[RCX/108]=0 1:[GS/63]=8
0x65 0x48 0x8b 0x0c 0x25 0x08 0x00 0x00 0x00
# CHECK: [o:xorps][w: ][2-r:%xmm1=r129][p:,][w: ][0-r:%xmm2=r130] 0:[XMM2/130]=0 1:[XMM2/130]=0 2:[XMM1/129]=0
0x0f 0x57 0xd1
# CHECK: [o:andps][w: ][2-r:%xmm1=r129][p:,][w: ][0-r:%xmm2=r130] 0:[XMM2/130]=0 1:[XMM2/130]=0 2:[XMM1/129]=0
0x0f 0x54 0xd1

6
utils/TableGen/EDEmitter.cpp
View File

@ -802,14 +802,14 @@ static void populateInstInfo(CompoundConstantEmitter &infoArray,
for (index = 0; index < numInstructions; ++index) {
const CodeGenInstruction& inst = *numberedInstructions[index];
CompoundConstantEmitter *infoStruct = new CompoundConstantEmitter;
infoArray.addEntry(infoStruct);
// We don't need to do anything for pseudo-instructions, as we'll never
// see them here. We'll only see real instructions.
if (inst.isPseudo)
continue;
CompoundConstantEmitter *infoStruct = new CompoundConstantEmitter;
infoArray.addEntry(infoStruct);
LiteralConstantEmitter *instType = new LiteralConstantEmitter;
infoStruct->addEntry(instType);