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cranelift: Implement scalar FMA on x86 (#4460)

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x86 does not have dedicated instructions for scalar FMA, lower
to a libcall which seems to be what llvm does.
This commit is contained in:
Afonso Bordado
2022-08-03 18:29:10 +01:00
committed by GitHub
parent ff6082c0af
commit 709716bb8e
13 changed files with 167 additions and 50 deletions
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2
cranelift/codegen/src/isa/aarch64/lower.rs
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@@ -1551,7 +1551,7 @@ impl LowerBackend for AArch64Backend {
type MInst = Inst;
fn lower<C: LowerCtx<I = Inst>>(&self, ctx: &mut C, ir_inst: IRInst) -> CodegenResult<()> {
lower_inst::lower_insn_to_regs(ctx, ir_inst, &self.flags, &self.isa_flags)
lower_inst::lower_insn_to_regs(ctx, ir_inst, &self.triple, &self.flags, &self.isa_flags)
}
fn lower_branch_group<C: LowerCtx<I = Inst>>(