1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
2; RUN: llc < %s -verify-machineinstrs -mtriple=powerpc64le-linux-gnu | FileCheck %s
3
4define float @can_fma_with_fewer_uses(float %f1, float %f2, float %f3, float %f4) {
5; CHECK-LABEL: can_fma_with_fewer_uses:
6; CHECK:       # %bb.0:
7; CHECK-NEXT:    xsmulsp 0, 1, 2
8; CHECK-NEXT:    fmr 1, 0
9; CHECK-NEXT:    xsmaddasp 1, 3, 4
10; CHECK-NEXT:    xsdivsp 1, 0, 1
11; CHECK-NEXT:    blr
12  %mul1 = fmul contract float %f1, %f2
13  %mul2 = fmul contract float %f3, %f4
14  %add = fadd contract float %mul1, %mul2
15  %second_use_of_mul1 = fdiv float %mul1, %add
16  ret float %second_use_of_mul1
17}
18
19; There is no contract on the mul with no extra use so we can't fuse that.
20; Since we are fusing with the mul with an extra use, the fmul needs to stick
21; around beside the fma.
22define float @no_fma_with_fewer_uses(float %f1, float %f2, float %f3, float %f4) {
23; CHECK-LABEL: no_fma_with_fewer_uses:
24; CHECK:       # %bb.0:
25; CHECK-NEXT:    xsmulsp 0, 1, 2
26; CHECK-NEXT:    fmr 1, 0
27; CHECK-NEXT:    xsmaddasp 1, 3, 4
28; CHECK-NEXT:    xsdivsp 1, 0, 1
29; CHECK-NEXT:    blr
30  %mul1 = fmul contract float %f1, %f2
31  %mul2 = fmul float %f3, %f4
32  %add = fadd contract float %mul1, %mul2
33  %second_use_of_mul1 = fdiv float %mul1, %add
34  ret float %second_use_of_mul1
35}
36