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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -verify-machineinstrs -mtriple=powerpc64le-linux-gnu | FileCheck %s
define float @can_fma_with_fewer_uses(float %f1, float %f2, float %f3, float %f4) {
; CHECK-LABEL: can_fma_with_fewer_uses:
; CHECK: # %bb.0:
; CHECK-NEXT: xsmulsp 0, 1, 2
; CHECK-NEXT: fmr 1, 0
; CHECK-NEXT: xsmaddasp 1, 3, 4
; CHECK-NEXT: xsdivsp 1, 0, 1
; CHECK-NEXT: blr
%mul1 = fmul contract float %f1, %f2
%mul2 = fmul contract float %f3, %f4
%add = fadd contract float %mul1, %mul2
%second_use_of_mul1 = fdiv float %mul1, %add
ret float %second_use_of_mul1
}
; There is no contract on the mul with no extra use so we can't fuse that.
; Since we are fusing with the mul with an extra use, the fmul needs to stick
; around beside the fma.
define float @no_fma_with_fewer_uses(float %f1, float %f2, float %f3, float %f4) {
; CHECK-LABEL: no_fma_with_fewer_uses:
; CHECK: # %bb.0:
; CHECK-NEXT: xsmulsp 3, 3, 4
; CHECK-NEXT: xsmulsp 0, 1, 2
; CHECK-NEXT: xsmaddasp 3, 1, 2
; CHECK-NEXT: xsdivsp 1, 0, 3
; CHECK-NEXT: blr
%mul1 = fmul contract float %f1, %f2
%mul2 = fmul float %f3, %f4
%add = fadd contract float %mul1, %mul2
%second_use_of_mul1 = fdiv float %mul1, %add
ret float %second_use_of_mul1
}
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