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Revert "[X86][NFC] Remove dead code for "_REV" instructions"

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This reverts commit 85f3d81fabb9381ce5bc0112d029a7c684b01006.

Affects BOLT macro-fusion and not NFC.
This commit is contained in:
Amir Ayupov 2024-01-09 17:14:55 -08:00
parent 46944210eb
commit ea3c7b3397
2 changed files with 17 additions and 0 deletions
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16
llvm/lib/Target/X86/MCTargetDesc/X86BaseInfo.h
View File

@ -148,21 +148,25 @@ classifyFirstOpcodeInMacroFusion(unsigned Opcode) {
case X86::AND16ri8:
case X86::AND16rm:
case X86::AND16rr:
case X86::AND16rr_REV:
case X86::AND32i32:
case X86::AND32ri:
case X86::AND32ri8:
case X86::AND32rm:
case X86::AND32rr:
case X86::AND32rr_REV:
case X86::AND64i32:
case X86::AND64ri32:
case X86::AND64ri8:
case X86::AND64rm:
case X86::AND64rr:
case X86::AND64rr_REV:
case X86::AND8i8:
case X86::AND8ri:
case X86::AND8ri8:
case X86::AND8rm:
case X86::AND8rr:
case X86::AND8rr_REV:
return FirstMacroFusionInstKind::And;
// CMP
case X86::CMP16i16:
@ -171,24 +175,28 @@ classifyFirstOpcodeInMacroFusion(unsigned Opcode) {
case X86::CMP16ri8:
case X86::CMP16rm:
case X86::CMP16rr:
case X86::CMP16rr_REV:
case X86::CMP32i32:
case X86::CMP32mr:
case X86::CMP32ri:
case X86::CMP32ri8:
case X86::CMP32rm:
case X86::CMP32rr:
case X86::CMP32rr_REV:
case X86::CMP64i32:
case X86::CMP64mr:
case X86::CMP64ri32:
case X86::CMP64ri8:
case X86::CMP64rm:
case X86::CMP64rr:
case X86::CMP64rr_REV:
case X86::CMP8i8:
case X86::CMP8mr:
case X86::CMP8ri:
case X86::CMP8ri8:
case X86::CMP8rm:
case X86::CMP8rr:
case X86::CMP8rr_REV:
return FirstMacroFusionInstKind::Cmp;
// ADD
case X86::ADD16i16:
@ -196,42 +204,50 @@ classifyFirstOpcodeInMacroFusion(unsigned Opcode) {
case X86::ADD16ri8:
case X86::ADD16rm:
case X86::ADD16rr:
case X86::ADD16rr_REV:
case X86::ADD32i32:
case X86::ADD32ri:
case X86::ADD32ri8:
case X86::ADD32rm:
case X86::ADD32rr:
case X86::ADD32rr_REV:
case X86::ADD64i32:
case X86::ADD64ri32:
case X86::ADD64ri8:
case X86::ADD64rm:
case X86::ADD64rr:
case X86::ADD64rr_REV:
case X86::ADD8i8:
case X86::ADD8ri:
case X86::ADD8ri8:
case X86::ADD8rm:
case X86::ADD8rr:
case X86::ADD8rr_REV:
// SUB
case X86::SUB16i16:
case X86::SUB16ri:
case X86::SUB16ri8:
case X86::SUB16rm:
case X86::SUB16rr:
case X86::SUB16rr_REV:
case X86::SUB32i32:
case X86::SUB32ri:
case X86::SUB32ri8:
case X86::SUB32rm:
case X86::SUB32rr:
case X86::SUB32rr_REV:
case X86::SUB64i32:
case X86::SUB64ri32:
case X86::SUB64ri8:
case X86::SUB64rm:
case X86::SUB64rr:
case X86::SUB64rr_REV:
case X86::SUB8i8:
case X86::SUB8ri:
case X86::SUB8ri8:
case X86::SUB8rm:
case X86::SUB8rr:
case X86::SUB8rr_REV:
return FirstMacroFusionInstKind::AddSub;
// INC
case X86::INC16r:

1
llvm/lib/Target/X86/X86FlagsCopyLowering.cpp
View File

@ -173,6 +173,7 @@ static FlagArithMnemonic getMnemonicFromOpcode(unsigned Opcode) {
#define LLVM_EXPAND_ADC_SBB_INSTR(MNEMONIC) \
LLVM_EXPAND_INSTR_SIZES(MNEMONIC, rr) \
LLVM_EXPAND_INSTR_SIZES(MNEMONIC, rr_REV) \
LLVM_EXPAND_INSTR_SIZES(MNEMONIC, rm) \
LLVM_EXPAND_INSTR_SIZES(MNEMONIC, mr) \
case X86::MNEMONIC##8ri: \