mirror/rabbitizer
1
0
Fork 0
mirror of https://github.com/Decompollaborate/rabbitizer.git synced 2025-01-01 08:59:40 +00:00
Code Issues Packages Projects Releases Wiki Activity

minor rewrite to pseudo instructions handling

Browse Source
This commit is contained in:
angie 2022-07-01 12:48:55 -04:00
parent 7eab5eb1df
commit 8193d65afa
1 changed files with 74 additions and 39 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

113
src/instructions/RabbitizerInstruction/RabbitizerInstruction_ProcessUniqueId.c
View File

@ -4,6 +4,7 @@
#include "instructions/RabbitizerInstruction.h"
#include "common/RabbitizerConfig.h"
#include "instructions/RabbitizerRegister.h"
void RabbitizerInstruction_processUniqueId_Normal(RabbitizerInstruction *self) {
@ -188,22 +189,31 @@ void RabbitizerInstruction_processUniqueId_Normal(RabbitizerInstruction *self) {
}
if (RabbitizerConfig_Cfg.pseudos.enablePseudos) {
if (self->rt == 0) {
if (self->uniqueId == RABBITIZER_INSTR_ID_cpu_beq) {
if (self->rs == 0) {
if (RabbitizerConfig_Cfg.pseudos.pseudoB) {
self->uniqueId = RABBITIZER_INSTR_ID_cpu_b;
}
} else {
if (RabbitizerConfig_Cfg.pseudos.pseudoBeqz) {
self->uniqueId = RABBITIZER_INSTR_ID_cpu_beqz;
switch (self->uniqueId) {
case RABBITIZER_INSTR_ID_cpu_beq:
if (self->rt == 0) {
if (self->rs == 0) {
if (RabbitizerConfig_Cfg.pseudos.pseudoB) {
self->uniqueId = RABBITIZER_INSTR_ID_cpu_b;
}
} else {
if (RabbitizerConfig_Cfg.pseudos.pseudoBeqz) {
self->uniqueId = RABBITIZER_INSTR_ID_cpu_beqz;
}
}
}
} else if (self->uniqueId == RABBITIZER_INSTR_ID_cpu_bne) {
if (RabbitizerConfig_Cfg.pseudos.pseudoBnez) {
self->uniqueId = RABBITIZER_INSTR_ID_cpu_bnez;
break;
case RABBITIZER_INSTR_ID_cpu_bne:
if (self->rt == 0) {
if (RabbitizerConfig_Cfg.pseudos.pseudoBnez) {
self->uniqueId = RABBITIZER_INSTR_ID_cpu_bnez;
}
}
}
break;
default:
break;
}
}
@ -402,40 +412,65 @@ void RabbitizerInstruction_processUniqueId_Special(RabbitizerInstruction *self)
// NOP is special enough
self->uniqueId = RABBITIZER_INSTR_ID_cpu_nop;
} else if (RabbitizerConfig_Cfg.pseudos.enablePseudos) {
if (self->rt == 0) {
if (self->uniqueId == RABBITIZER_INSTR_ID_cpu_or) {
if (RabbitizerConfig_Cfg.pseudos.pseudoMove) {
self->uniqueId = RABBITIZER_INSTR_ID_cpu_move;
switch (self->uniqueId) {
case RABBITIZER_INSTR_ID_cpu_or:
if (self->rt == 0) {
if (RabbitizerConfig_Cfg.pseudos.pseudoMove) {
self->uniqueId = RABBITIZER_INSTR_ID_cpu_move;
}
}
} else if (self->uniqueId == RABBITIZER_INSTR_ID_cpu_nor) {
if (RabbitizerConfig_Cfg.pseudos.pseudoNot) {
self->uniqueId = RABBITIZER_INSTR_ID_cpu_not;
break;
case RABBITIZER_INSTR_ID_cpu_nor:
if (self->rt == 0) {
if (RabbitizerConfig_Cfg.pseudos.pseudoNot) {
self->uniqueId = RABBITIZER_INSTR_ID_cpu_not;
}
}
}
} else if (self->uniqueId == RABBITIZER_INSTR_ID_cpu_subu) {
if (self->rs == 0) {
if (RabbitizerConfig_Cfg.pseudos.pseudoNegu) {
self->uniqueId = RABBITIZER_INSTR_ID_cpu_negu;
break;
case RABBITIZER_INSTR_ID_cpu_subu:
if (self->rs == 0) {
if (RabbitizerConfig_Cfg.pseudos.pseudoNegu) {
self->uniqueId = RABBITIZER_INSTR_ID_cpu_negu;
}
}
}
break;
default:
break;
}
}
self->descriptor = &RabbitizerInstrDescriptor_Descriptors[self->uniqueId];
if (self->uniqueId == RABBITIZER_INSTR_ID_cpu_jalr) {
// $ra
if (self->rd != 31) {
self->descriptor = &RabbitizerInstrDescriptor_Descriptors[RABBITIZER_INSTR_ID_cpu_jalr_rd];
}
} else if (self->uniqueId == RABBITIZER_INSTR_ID_cpu_div) {
if (RabbitizerConfig_Cfg.toolchainTweaks.sn64DivFix && !self->inHandwrittenFunction) {
self->descriptor = &RabbitizerInstrDescriptor_Descriptors[RABBITIZER_INSTR_ID_cpu_sn64_div];
}
} else if (self->uniqueId == RABBITIZER_INSTR_ID_cpu_divu) {
if (RabbitizerConfig_Cfg.toolchainTweaks.sn64DivFix && !self->inHandwrittenFunction) {
self->descriptor = &RabbitizerInstrDescriptor_Descriptors[RABBITIZER_INSTR_ID_cpu_sn64_divu];
}
switch (self->uniqueId) {
case RABBITIZER_INSTR_ID_cpu_jalr:
if (RabbitizerConfig_Cfg.regNames.gprAbiNames == RABBITIZER_ABI_NUMERIC || RabbitizerConfig_Cfg.regNames.gprAbiNames == RABBITIZER_ABI_O32) {
if (self->rd != RABBITIZER_REG_GPR_O32_ra) {
self->descriptor = &RabbitizerInstrDescriptor_Descriptors[RABBITIZER_INSTR_ID_cpu_jalr_rd];
}
} else {
if (self->rd != RABBITIZER_REG_GPR_N32_ra) {
self->descriptor = &RabbitizerInstrDescriptor_Descriptors[RABBITIZER_INSTR_ID_cpu_jalr_rd];
}
}
break;
case RABBITIZER_INSTR_ID_cpu_div:
if (RabbitizerConfig_Cfg.toolchainTweaks.sn64DivFix && !self->inHandwrittenFunction) {
self->descriptor = &RabbitizerInstrDescriptor_Descriptors[RABBITIZER_INSTR_ID_cpu_sn64_div];
}
break;
case RABBITIZER_INSTR_ID_cpu_divu:
if (RabbitizerConfig_Cfg.toolchainTweaks.sn64DivFix && !self->inHandwrittenFunction) {
self->descriptor = &RabbitizerInstrDescriptor_Descriptors[RABBITIZER_INSTR_ID_cpu_sn64_divu];
}
break;
default:
break;
}
}