; RUN: llc -mtriple=arm-eabi -mattr=+vfp2 %s -o - | FileCheck %s -check-prefix=VFP2 ; RUN: llc -mtriple=arm-eabi -mattr=+neon %s -o - | FileCheck %s -check-prefix=NEON ; RUN: llc -mtriple=arm-eabi -mcpu=cortex-a8 %s -o - | FileCheck %s -check-prefix=A8 ; RUN: llc -mtriple=arm-eabi -mcpu=cortex-a9 %s -o - | FileCheck %s -check-prefix=A9 ; RUN: llc -mtriple=arm-linux-gnueabi -mcpu=cortex-a9 -float-abi=hard %s -o - | FileCheck %s -check-prefix=HARD ; RUN: llc -mtriple=arm-linux-gnueabi -mcpu=cortex-m4 -float-abi=hard %s -o - | FileCheck %s -check-prefix=VMLA ; RUN: llc -mtriple=arm-linux-gnueabi -mcpu=cortex-m33 -float-abi=hard %s -o - | FileCheck %s -check-prefix=VMLA define float @t1(float %acc, float %a, float %b) { entry: ; VFP2-LABEL: t1: ; VFP2: vmla.f32 ; NEON-LABEL: t1: ; NEON: vmla.f32 ; A8-LABEL: t1: ; A8: vmul.f32 ; A8: vadd.f32 ; VMLA-LABEL: t1: ; VMLA: vmul.f32 ; VMLA-NEXT: vadd.f32 %0 = fmul float %a, %b %1 = fadd float %acc, %0 ret float %1 } define float @vmla_minsize(float %acc, float %a, float %b) #0 { entry: ; VMLA-LABEL: vmla_minsize: ; VMLA: vmla.f32 s0, s1, s2 ; VMLA-NEXT: bx lr %0 = fmul float %a, %b %1 = fadd float %acc, %0 ret float %1 } define double @t2(double %acc, double %a, double %b) { entry: ; VFP2-LABEL: t2: ; VFP2: vmla.f64 ; NEON-LABEL: t2: ; NEON: vmla.f64 ; A8-LABEL: t2: ; A8: vmul.f64 ; A8: vadd.f64 %0 = fmul double %a, %b %1 = fadd double %acc, %0 ret double %1 } define float @t3(float %acc, float %a, float %b) { entry: ; VFP2-LABEL: t3: ; VFP2: vmla.f32 ; NEON-LABEL: t3: ; NEON: vmla.f32 ; A8-LABEL: t3: ; A8: vmul.f32 ; A8: vadd.f32 %0 = fmul float %a, %b %1 = fadd float %0, %acc ret float %1 } ; It's possible to make use of fp vmla / vmls on Cortex-A9. ; rdar://8659675 define void @t4(float %acc1, float %a, float %b, float %acc2, float %c, float* %P1, float* %P2) { entry: ; A8-LABEL: t4: ; A8: vmul.f32 ; A8: vmul.f32 ; A8: vadd.f32 ; A8: vadd.f32 ; Two vmla with now RAW hazard ; A9-LABEL: t4: ; A9: vmla.f32 ; A9: vmla.f32 ; HARD-LABEL: t4: ; HARD: vmla.f32 s0, s1, s2 ; HARD: vmla.f32 s3, s1, s4 %0 = fmul float %a, %b %1 = fadd float %acc1, %0 %2 = fmul float %a, %c %3 = fadd float %acc2, %2 store float %1, float* %P1 store float %3, float* %P2 ret void } define float @t5(float %a, float %b, float %c, float %d, float %e) { entry: ; A8-LABEL: t5: ; A8: vmul.f32 ; A8: vmul.f32 ; A8: vadd.f32 ; A8: vadd.f32 ; A9-LABEL: t5: ; A9: vmla.f32 ; A9: vmul.f32 ; A9: vadd.f32 ; HARD-LABEL: t5: ; HARD: vmla.f32 s4, s0, s1 ; HARD: vmul.f32 s0, s2, s3 ; HARD: vadd.f32 s0, s4, s0 %0 = fmul float %a, %b %1 = fadd float %e, %0 %2 = fmul float %c, %d %3 = fadd float %1, %2 ret float %3 } attributes #0 = { minsize nounwind optsize }