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Merge SignExtendAlAh and SignExtendRaxRdx

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This commit is contained in:
bjorn3
2020-09-08 13:14:14 +02:00
committed by Benjamin Bouvier
parent 3dcda164dc
commit 9428480230
4 changed files with 43 additions and 42 deletions
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4
cranelift/codegen/src/isa/x64/lower.rs
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@@ -2391,7 +2391,7 @@ fn lower_insn_to_regs<C: LowerCtx<I = Inst>>(
if input_ty == types::I8 {
if kind.is_signed() {
// sign-extend the sign-bit of al into ah, for signed opcodes.
ctx.emit(Inst::sign_extend_al_to_ah());
ctx.emit(Inst::sign_extend_data(1));
} else {
ctx.emit(Inst::movzx_rm_r(
ExtMode::BL,
@@ -2403,7 +2403,7 @@ fn lower_insn_to_regs<C: LowerCtx<I = Inst>>(
} else {
if kind.is_signed() {
// sign-extend the sign-bit of rax into rdx, for signed opcodes.
ctx.emit(Inst::sign_extend_rax_to_rdx(size));
ctx.emit(Inst::sign_extend_data(size));
} else {
// zero for unsigned opcodes.
ctx.emit(Inst::imm_r(