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[InstCombine] add FMF to better show current fdiv fold behavior; NFC

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llvm-svn: 325365
This commit is contained in:
Sanjay Patel 2018-02-16 17:46:50 +00:00
parent b2c7a71245
commit 2925a2a3c3
1 changed files with 4 additions and 4 deletions
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8
test/Transforms/InstCombine/fdiv.ll
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@ -119,11 +119,11 @@ define <2 x float> @not_exact_inverse_vec(<2 x float> %x) {
define float @div_with_div_numerator(float %x, float %y, float %z) {
; CHECK-LABEL: @div_with_div_numerator(
; CHECK-NEXT: [[TMP1:%.*]] = fmul float [[Y:%.*]], [[Z:%.*]]
; CHECK-NEXT: [[TMP1:%.*]] = fmul ninf float [[Y:%.*]], [[Z:%.*]]
; CHECK-NEXT: [[DIV2:%.*]] = fdiv fast float [[X:%.*]], [[TMP1]]
; CHECK-NEXT: ret float [[DIV2]]
;
%div1 = fdiv float %x, %y
%div1 = fdiv ninf float %x, %y
%div2 = fdiv fast float %div1, %z
ret float %div2
}
@ -132,11 +132,11 @@ define float @div_with_div_numerator(float %x, float %y, float %z) {
define <2 x float> @div_with_div_denominator(<2 x float> %x, <2 x float> %y, <2 x float> %z) {
; CHECK-LABEL: @div_with_div_denominator(
; CHECK-NEXT: [[TMP1:%.*]] = fmul <2 x float> [[Z:%.*]], [[Y:%.*]]
; CHECK-NEXT: [[TMP1:%.*]] = fmul nnan <2 x float> [[Y:%.*]], [[Z:%.*]]
; CHECK-NEXT: [[DIV2:%.*]] = fdiv fast <2 x float> [[TMP1]], [[X:%.*]]
; CHECK-NEXT: ret <2 x float> [[DIV2]]
;
%div1 = fdiv <2 x float> %x, %y
%div1 = fdiv nnan <2 x float> %x, %y
%div2 = fdiv fast <2 x float> %z, %div1
ret <2 x float> %div2
}