1 ; RUN: llc -mtriple=arm64-eabi < %s | FileCheck %s
3 define float @fma32(float %a, float %b, float %c) nounwind readnone ssp {
6 ; CHECK: fmadd s0, s0, s1, s2
7 %0 = tail call float @llvm.fma.f32(float %a, float %b, float %c)
11 define float @fnma32(float %a, float %b, float %c) nounwind readnone ssp {
13 ; CHECK-LABEL: fnma32:
14 ; CHECK: fnmadd s0, s0, s1, s2
15 %0 = tail call float @llvm.fma.f32(float %a, float %b, float %c)
16 %mul = fmul float %0, -1.000000e+00
20 define float @fms32(float %a, float %b, float %c) nounwind readnone ssp {
23 ; CHECK: fmsub s0, s0, s1, s2
24 %mul = fmul float %b, -1.000000e+00
25 %0 = tail call float @llvm.fma.f32(float %a, float %mul, float %c)
29 define float @fms32_com(float %a, float %b, float %c) nounwind readnone ssp {
31 ; CHECK-LABEL: fms32_com:
32 ; CHECK: fmsub s0, s1, s0, s2
33 %mul = fmul float %b, -1.000000e+00
34 %0 = tail call float @llvm.fma.f32(float %mul, float %a, float %c)
38 define float @fnms32(float %a, float %b, float %c) nounwind readnone ssp {
40 ; CHECK-LABEL: fnms32:
41 ; CHECK: fnmsub s0, s0, s1, s2
42 %mul = fmul float %c, -1.000000e+00
43 %0 = tail call float @llvm.fma.f32(float %a, float %b, float %mul)
47 define double @fma64(double %a, double %b, double %c) nounwind readnone ssp {
49 ; CHECK: fmadd d0, d0, d1, d2
51 %0 = tail call double @llvm.fma.f64(double %a, double %b, double %c)
55 define double @fnma64(double %a, double %b, double %c) nounwind readnone ssp {
56 ; CHECK-LABEL: fnma64:
57 ; CHECK: fnmadd d0, d0, d1, d2
59 %0 = tail call double @llvm.fma.f64(double %a, double %b, double %c)
60 %mul = fmul double %0, -1.000000e+00
64 define double @fms64(double %a, double %b, double %c) nounwind readnone ssp {
66 ; CHECK: fmsub d0, d0, d1, d2
68 %mul = fmul double %b, -1.000000e+00
69 %0 = tail call double @llvm.fma.f64(double %a, double %mul, double %c)
73 define double @fms64_com(double %a, double %b, double %c) nounwind readnone ssp {
74 ; CHECK-LABEL: fms64_com:
75 ; CHECK: fmsub d0, d1, d0, d2
77 %mul = fmul double %b, -1.000000e+00
78 %0 = tail call double @llvm.fma.f64(double %mul, double %a, double %c)
82 define double @fnms64(double %a, double %b, double %c) nounwind readnone ssp {
83 ; CHECK-LABEL: fnms64:
84 ; CHECK: fnmsub d0, d0, d1, d2
86 %mul = fmul double %c, -1.000000e+00
87 %0 = tail call double @llvm.fma.f64(double %a, double %b, double %mul)
91 ; This would crash while trying getNegatedExpression().
93 define float @negated_constant(float %x) {
94 ; CHECK-LABEL: negated_constant:
96 ; CHECK-NEXT: mov w8, #-1037565952
97 ; CHECK-NEXT: mov w9, #1109917696
98 ; CHECK-NEXT: fmov s1, w8
99 ; CHECK-NEXT: fmul s1, s0, s1
100 ; CHECK-NEXT: fmov s2, w9
101 ; CHECK-NEXT: fmadd s0, s0, s2, s1
103 %m = fmul float %x, 42.0
104 %fma = call nsz float @llvm.fma.f32(float %x, float -42.0, float %m)
105 %nfma = fneg float %fma
109 declare float @llvm.fma.f32(float, float, float) nounwind readnone
110 declare double @llvm.fma.f64(double, double, double) nounwind readnone