Skip to content

[InstCombine] Add regression tests for f[min][max]imum_num libcalls #170695

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
nikic merged 1 commit into from
Dec 5, 2025
Merged

[InstCombine] Add regression tests for f[min][max]imum_num libcalls #170695

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
36 changes: 36 additions & 0 deletions llvm/test/Transforms/InstCombine/float-shrink-compare.ll
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -463,6 +463,40 @@ define i1 @test18(float %x, float %y, float %z) {
ret i1 %5
}

define i1 @test_fminimum_num(float %x, float %y, float %z) {
; CHECK-LABEL: @test_fminimum_num(
; CHECK-NEXT: [[TMP1:%.*]] = fpext float [[X:%.*]] to double
; CHECK-NEXT: [[TMP2:%.*]] = fpext float [[Y:%.*]] to double
; CHECK-NEXT: [[TMP3:%.*]] = call double @fminimum_num(double [[TMP1]], double [[TMP2]]) #[[ATTR3:[0-9]+]]
; CHECK-NEXT: [[TMP4:%.*]] = fpext float [[Z:%.*]] to double
; CHECK-NEXT: [[TMP5:%.*]] = fcmp oeq double [[TMP3]], [[TMP4]]
; CHECK-NEXT: ret i1 [[TMP5]]
;
%1 = fpext float %x to double
%2 = fpext float %y to double
%3 = call double @fminimum_num(double %1, double %2) nounwind
%4 = fpext float %z to double
%5 = fcmp oeq double %3, %4
ret i1 %5
}

define i1 @test_fmaximum_num(float %x, float %y, float %z) {
; CHECK-LABEL: @test_fmaximum_num(
; CHECK-NEXT: [[TMP1:%.*]] = fpext float [[X:%.*]] to double
; CHECK-NEXT: [[TMP2:%.*]] = fpext float [[Y:%.*]] to double
; CHECK-NEXT: [[TMP3:%.*]] = call double @fmaximum_num(double [[TMP1]], double [[TMP2]]) #[[ATTR3]]
; CHECK-NEXT: [[TMP4:%.*]] = fpext float [[Z:%.*]] to double
; CHECK-NEXT: [[TMP5:%.*]] = fcmp oeq double [[TMP3]], [[TMP4]]
; CHECK-NEXT: ret i1 [[TMP5]]
;
%1 = fpext float %x to double
%2 = fpext float %y to double
%3 = call double @fmaximum_num(double %1, double %2) nounwind
%4 = fpext float %z to double
%5 = fcmp oeq double %3, %4
ret i1 %5
}

define i1 @test19(float %x, float %y, float %z) {
; CHECK-LABEL: @test19(
; CHECK-NEXT: [[COPYSIGNF:%.*]] = call float @copysignf(float [[X:%.*]], float [[Y:%.*]]) #[[ATTR0:[0-9]+]]
Expand Down Expand Up @@ -518,6 +552,8 @@ declare double @roundeven(double) nounwind readnone
declare double @trunc(double) nounwind readnone
declare double @fmin(double, double) nounwind readnone
declare double @fmax(double, double) nounwind readnone
declare double @fminimum_num(double, double) nounwind readnone
declare double @fmaximum_num(double, double) nounwind readnone

declare double @llvm.fabs.f64(double) nounwind readnone
declare double @llvm.ceil.f64(double) nounwind readnone
Expand Down
Loading