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ir: Add opcodes for performing scalar integral min/max

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Lioncash 2018-07-29 17:52:27 -04:00 • committed by MerryMage
parent 7fdd8b0197
commit 2501bfbfae
4 changed files with 140 additions and 0 deletions
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96
src/backend_x64/emit_x64_data_processing.cpp
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@ -1317,4 +1317,100 @@ void EmitX64::EmitCountLeadingZeros64(EmitContext& ctx, IR::Inst* inst) {
}
}
void EmitX64::EmitMaxSigned32(EmitContext& ctx, IR::Inst* inst) {
auto args = ctx.reg_alloc.GetArgumentInfo(inst);
const Xbyak::Reg32 x = ctx.reg_alloc.UseGpr(args[0]).cvt32();
const Xbyak::Reg32 y = ctx.reg_alloc.UseScratchGpr(args[1]).cvt32();
code.cmp(x, y);
code.cmovge(y, x);
ctx.reg_alloc.DefineValue(inst, y);
}
void EmitX64::EmitMaxSigned64(EmitContext& ctx, IR::Inst* inst) {
auto args = ctx.reg_alloc.GetArgumentInfo(inst);
const Xbyak::Reg64 x = ctx.reg_alloc.UseGpr(args[0]);
const Xbyak::Reg64 y = ctx.reg_alloc.UseScratchGpr(args[1]);
code.cmp(x, y);
code.cmovge(y, x);
ctx.reg_alloc.DefineValue(inst, y);
}
void EmitX64::EmitMaxUnsigned32(EmitContext& ctx, IR::Inst* inst) {
auto args = ctx.reg_alloc.GetArgumentInfo(inst);
const Xbyak::Reg32 x = ctx.reg_alloc.UseGpr(args[0]).cvt32();
const Xbyak::Reg32 y = ctx.reg_alloc.UseScratchGpr(args[1]).cvt32();
code.cmp(x, y);
code.cmova(y, x);
ctx.reg_alloc.DefineValue(inst, y);
}
void EmitX64::EmitMaxUnsigned64(EmitContext& ctx, IR::Inst* inst) {
auto args = ctx.reg_alloc.GetArgumentInfo(inst);
const Xbyak::Reg64 x = ctx.reg_alloc.UseGpr(args[0]);
const Xbyak::Reg64 y = ctx.reg_alloc.UseScratchGpr(args[1]);
code.cmp(x, y);
code.cmova(y, x);
ctx.reg_alloc.DefineValue(inst, y);
}
void EmitX64::EmitMinSigned32(EmitContext& ctx, IR::Inst* inst) {
auto args = ctx.reg_alloc.GetArgumentInfo(inst);
const Xbyak::Reg32 x = ctx.reg_alloc.UseGpr(args[0]).cvt32();
const Xbyak::Reg32 y = ctx.reg_alloc.UseScratchGpr(args[1]).cvt32();
code.cmp(x, y);
code.cmovle(y, x);
ctx.reg_alloc.DefineValue(inst, y);
}
void EmitX64::EmitMinSigned64(EmitContext& ctx, IR::Inst* inst) {
auto args = ctx.reg_alloc.GetArgumentInfo(inst);
const Xbyak::Reg64 x = ctx.reg_alloc.UseGpr(args[0]);
const Xbyak::Reg64 y = ctx.reg_alloc.UseScratchGpr(args[1]);
code.cmp(x, y);
code.cmovle(y, x);
ctx.reg_alloc.DefineValue(inst, y);
}
void EmitX64::EmitMinUnsigned32(EmitContext& ctx, IR::Inst* inst) {
auto args = ctx.reg_alloc.GetArgumentInfo(inst);
const Xbyak::Reg32 x = ctx.reg_alloc.UseGpr(args[0]).cvt32();
const Xbyak::Reg32 y = ctx.reg_alloc.UseScratchGpr(args[1]).cvt32();
code.cmp(x, y);
code.cmovb(y, x);
ctx.reg_alloc.DefineValue(inst, y);
}
void EmitX64::EmitMinUnsigned64(EmitContext& ctx, IR::Inst* inst) {
auto args = ctx.reg_alloc.GetArgumentInfo(inst);
const Xbyak::Reg64 x = ctx.reg_alloc.UseGpr(args[0]);
const Xbyak::Reg64 y = ctx.reg_alloc.UseScratchGpr(args[1]);
code.cmp(x, y);
code.cmovb(y, x);
ctx.reg_alloc.DefineValue(inst, y);
}
} // namespace Dynarmic::BackendX64