derek.holloway
7502bf64a4
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125 lines
2.7 KiB
LLVM
125 lines
2.7 KiB
LLVM
; RUN: llc -mtriple=arm-eabi -mattr=+vfp2 %s -o - | FileCheck %s -check-prefix=VFP2
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; RUN: llc -mtriple=arm-eabi -mattr=+neon %s -o - | FileCheck %s -check-prefix=NEON
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; RUN: llc -mtriple=arm-eabi -mcpu=cortex-a8 %s -o - | FileCheck %s -check-prefix=A8
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; RUN: llc -mtriple=arm-eabi -mcpu=cortex-a9 %s -o - | FileCheck %s -check-prefix=A9
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; RUN: llc -mtriple=arm-linux-gnueabi -mcpu=cortex-a9 -float-abi=hard %s -o - | FileCheck %s -check-prefix=HARD
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; RUN: llc -mtriple=arm-linux-gnueabi -mcpu=cortex-m4 -float-abi=hard %s -o - | FileCheck %s -check-prefix=VMLA
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; RUN: llc -mtriple=arm-linux-gnueabi -mcpu=cortex-m33 -float-abi=hard %s -o - | FileCheck %s -check-prefix=VMLA
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define float @t1(float %acc, float %a, float %b) {
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entry:
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; VFP2-LABEL: t1:
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; VFP2: vmla.f32
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; NEON-LABEL: t1:
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; NEON: vmla.f32
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; A8-LABEL: t1:
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; A8: vmul.f32
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; A8: vadd.f32
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; VMLA-LABEL: t1:
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; VMLA: vmul.f32
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; VMLA-NEXT: vadd.f32
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%0 = fmul float %a, %b
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%1 = fadd float %acc, %0
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ret float %1
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}
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define float @vmla_minsize(float %acc, float %a, float %b) #0 {
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entry:
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; VMLA-LABEL: vmla_minsize:
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; VMLA: vmla.f32 s0, s1, s2
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; VMLA-NEXT: bx lr
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%0 = fmul float %a, %b
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%1 = fadd float %acc, %0
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ret float %1
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}
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define double @t2(double %acc, double %a, double %b) {
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entry:
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; VFP2-LABEL: t2:
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; VFP2: vmla.f64
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; NEON-LABEL: t2:
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; NEON: vmla.f64
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; A8-LABEL: t2:
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; A8: vmul.f64
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; A8: vadd.f64
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%0 = fmul double %a, %b
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%1 = fadd double %acc, %0
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ret double %1
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}
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define float @t3(float %acc, float %a, float %b) {
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entry:
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; VFP2-LABEL: t3:
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; VFP2: vmla.f32
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; NEON-LABEL: t3:
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; NEON: vmla.f32
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; A8-LABEL: t3:
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; A8: vmul.f32
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; A8: vadd.f32
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%0 = fmul float %a, %b
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%1 = fadd float %0, %acc
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ret float %1
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}
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; It's possible to make use of fp vmla / vmls on Cortex-A9.
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; rdar://8659675
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define void @t4(float %acc1, float %a, float %b, float %acc2, float %c, ptr %P1, ptr %P2) {
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entry:
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; A8-LABEL: t4:
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; A8: vmul.f32
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; A8: vmul.f32
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; A8: vadd.f32
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; A8: vadd.f32
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; Two vmla with now RAW hazard
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; A9-LABEL: t4:
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; A9: vmla.f32
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; A9: vmla.f32
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; HARD-LABEL: t4:
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; HARD: vmla.f32 s0, s1, s2
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; HARD: vmla.f32 s3, s1, s4
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%0 = fmul float %a, %b
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%1 = fadd float %acc1, %0
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%2 = fmul float %a, %c
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%3 = fadd float %acc2, %2
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store float %1, ptr %P1
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store float %3, ptr %P2
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ret void
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}
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define float @t5(float %a, float %b, float %c, float %d, float %e) {
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entry:
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; A8-LABEL: t5:
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; A8: vmul.f32
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; A8: vmul.f32
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; A8: vadd.f32
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; A8: vadd.f32
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; A9-LABEL: t5:
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; A9: vmla.f32
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; A9: vmul.f32
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; A9: vadd.f32
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; HARD-LABEL: t5:
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; HARD: vmla.f32 s4, s0, s1
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; HARD: vmul.f32 s0, s2, s3
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; HARD: vadd.f32 s0, s4, s0
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%0 = fmul float %a, %b
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%1 = fadd float %e, %0
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%2 = fmul float %c, %d
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%3 = fadd float %1, %2
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ret float %3
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}
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attributes #0 = { minsize nounwind optsize }
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