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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -instcombine -S | FileCheck %s
define float @select_fadd(i1 %cond, float %A, float %B) {
; CHECK-LABEL: @select_fadd(
; CHECK-NEXT: [[C:%.*]] = select i1 [[COND:%.*]], float [[B:%.*]], float -0.000000e+00
; CHECK-NEXT: [[D:%.*]] = fadd float [[C]], [[A:%.*]]
; CHECK-NEXT: ret float [[D]]
;
%C = fadd float %A, %B
%D = select i1 %cond, float %C, float %A
ret float %D
}
define float @select_fadd_swapped(i1 %cond, float %A, float %B) {
; CHECK-LABEL: @select_fadd_swapped(
; CHECK-NEXT: [[C:%.*]] = select i1 [[COND:%.*]], float -0.000000e+00, float [[B:%.*]]
; CHECK-NEXT: [[D:%.*]] = fadd float [[C]], [[A:%.*]]
; CHECK-NEXT: ret float [[D]]
;
%C = fadd float %A, %B
%D = select i1 %cond, float %A, float %C
ret float %D
}
define float @select_fadd_fast_math(i1 %cond, float %A, float %B) {
; CHECK-LABEL: @select_fadd_fast_math(
; CHECK-NEXT: [[C:%.*]] = select i1 [[COND:%.*]], float [[B:%.*]], float -0.000000e+00
; CHECK-NEXT: [[D:%.*]] = fadd fast float [[C]], [[A:%.*]]
; CHECK-NEXT: ret float [[D]]
;
%C = fadd fast float %A, %B
%D = select i1 %cond, float %C, float %A
ret float %D
}
define float @select_fadd_swapped_fast_math(i1 %cond, float %A, float %B) {
; CHECK-LABEL: @select_fadd_swapped_fast_math(
; CHECK-NEXT: [[C:%.*]] = select i1 [[COND:%.*]], float -0.000000e+00, float [[B:%.*]]
; CHECK-NEXT: [[D:%.*]] = fadd fast float [[C]], [[A:%.*]]
; CHECK-NEXT: ret float [[D]]
;
%C = fadd fast float %A, %B
%D = select i1 %cond, float %A, float %C
ret float %D
}
define float @select_fmul(i1 %cond, float %A, float %B) {
; CHECK-LABEL: @select_fmul(
; CHECK-NEXT: [[C:%.*]] = select i1 [[COND:%.*]], float [[B:%.*]], float 1.000000e+00
; CHECK-NEXT: [[D:%.*]] = fmul float [[C]], [[A:%.*]]
; CHECK-NEXT: ret float [[D]]
;
%C = fmul float %A, %B
%D = select i1 %cond, float %C, float %A
ret float %D
}
define float @select_fmul_swapped(i1 %cond, float %A, float %B) {
; CHECK-LABEL: @select_fmul_swapped(
; CHECK-NEXT: [[C:%.*]] = select i1 [[COND:%.*]], float 1.000000e+00, float [[B:%.*]]
; CHECK-NEXT: [[D:%.*]] = fmul float [[C]], [[A:%.*]]
; CHECK-NEXT: ret float [[D]]
;
%C = fmul float %A, %B
%D = select i1 %cond, float %A, float %C
ret float %D
}
define float @select_fmul_fast_math(i1 %cond, float %A, float %B) {
; CHECK-LABEL: @select_fmul_fast_math(
; CHECK-NEXT: [[C:%.*]] = select i1 [[COND:%.*]], float [[B:%.*]], float 1.000000e+00
; CHECK-NEXT: [[D:%.*]] = fmul fast float [[C]], [[A:%.*]]
; CHECK-NEXT: ret float [[D]]
;
%C = fmul fast float %A, %B
%D = select i1 %cond, float %C, float %A
ret float %D
}
define float @select_fmul_swapped_fast_math(i1 %cond, float %A, float %B) {
; CHECK-LABEL: @select_fmul_swapped_fast_math(
; CHECK-NEXT: [[C:%.*]] = select i1 [[COND:%.*]], float 1.000000e+00, float [[B:%.*]]
; CHECK-NEXT: [[D:%.*]] = fmul fast float [[C]], [[A:%.*]]
; CHECK-NEXT: ret float [[D]]
;
%C = fmul fast float %A, %B
%D = select i1 %cond, float %A, float %C
ret float %D
}
define float @select_fsub(i1 %cond, float %A, float %B) {
; CHECK-LABEL: @select_fsub(
; CHECK-NEXT: [[C:%.*]] = select i1 [[COND:%.*]], float [[B:%.*]], float 0.000000e+00
; CHECK-NEXT: [[D:%.*]] = fsub float [[A:%.*]], [[C]]
; CHECK-NEXT: ret float [[D]]
;
%C = fsub float %A, %B
%D = select i1 %cond, float %C, float %A
ret float %D
}
define float @select_fsub_swapped(i1 %cond, float %A, float %B) {
; CHECK-LABEL: @select_fsub_swapped(
; CHECK-NEXT: [[C:%.*]] = select i1 [[COND:%.*]], float 0.000000e+00, float [[B:%.*]]
; CHECK-NEXT: [[D:%.*]] = fsub float [[A:%.*]], [[C]]
; CHECK-NEXT: ret float [[D]]
;
%C = fsub float %A, %B
%D = select i1 %cond, float %A, float %C
ret float %D
}
define float @select_fsub_fast_math(i1 %cond, float %A, float %B) {
; CHECK-LABEL: @select_fsub_fast_math(
; CHECK-NEXT: [[C:%.*]] = select i1 [[COND:%.*]], float [[B:%.*]], float 0.000000e+00
; CHECK-NEXT: [[D:%.*]] = fsub fast float [[A:%.*]], [[C]]
; CHECK-NEXT: ret float [[D]]
;
%C = fsub fast float %A, %B
%D = select i1 %cond, float %C, float %A
ret float %D
}
define float @select_fsub_swapped_fast_math(i1 %cond, float %A, float %B) {
; CHECK-LABEL: @select_fsub_swapped_fast_math(
; CHECK-NEXT: [[C:%.*]] = select i1 [[COND:%.*]], float 0.000000e+00, float [[B:%.*]]
; CHECK-NEXT: [[D:%.*]] = fsub fast float [[A:%.*]], [[C]]
; CHECK-NEXT: ret float [[D]]
;
%C = fsub fast float %A, %B
%D = select i1 %cond, float %A, float %C
ret float %D
}
; 'fsub' can only fold on the amount subtracted.
define float @select_fsub_invalid(i1 %cond, float %A, float %B) {
; CHECK-LABEL: @select_fsub_invalid(
; CHECK-NEXT: [[C:%.*]] = fsub float [[B:%.*]], [[A:%.*]]
; CHECK-NEXT: [[D:%.*]] = select i1 [[COND:%.*]], float [[C]], float [[A]]
; CHECK-NEXT: ret float [[D]]
;
%C = fsub float %B, %A
%D = select i1 %cond, float %C, float %A
ret float %D
}
define float @select_fdiv(i1 %cond, float %A, float %B) {
; CHECK-LABEL: @select_fdiv(
; CHECK-NEXT: [[C:%.*]] = select i1 [[COND:%.*]], float [[B:%.*]], float 1.000000e+00
; CHECK-NEXT: [[D:%.*]] = fdiv float [[A:%.*]], [[C]]
; CHECK-NEXT: ret float [[D]]
;
%C = fdiv float %A, %B
%D = select i1 %cond, float %C, float %A
ret float %D
}
define float @select_fdiv_swapped(i1 %cond, float %A, float %B) {
; CHECK-LABEL: @select_fdiv_swapped(
; CHECK-NEXT: [[C:%.*]] = select i1 [[COND:%.*]], float 1.000000e+00, float [[B:%.*]]
; CHECK-NEXT: [[D:%.*]] = fdiv float [[A:%.*]], [[C]]
; CHECK-NEXT: ret float [[D]]
;
%C = fdiv float %A, %B
%D = select i1 %cond, float %A, float %C
ret float %D
}
define float @select_fdiv_fast_math(i1 %cond, float %A, float %B) {
; CHECK-LABEL: @select_fdiv_fast_math(
; CHECK-NEXT: [[C:%.*]] = select i1 [[COND:%.*]], float [[B:%.*]], float 1.000000e+00
; CHECK-NEXT: [[D:%.*]] = fdiv fast float [[A:%.*]], [[C]]
; CHECK-NEXT: ret float [[D]]
;
%C = fdiv fast float %A, %B
%D = select i1 %cond, float %C, float %A
ret float %D
}
define float @select_fdiv_swapped_fast_math(i1 %cond, float %A, float %B) {
; CHECK-LABEL: @select_fdiv_swapped_fast_math(
; CHECK-NEXT: [[C:%.*]] = select i1 [[COND:%.*]], float 1.000000e+00, float [[B:%.*]]
; CHECK-NEXT: [[D:%.*]] = fdiv fast float [[A:%.*]], [[C]]
; CHECK-NEXT: ret float [[D]]
;
%C = fdiv fast float %A, %B
%D = select i1 %cond, float %A, float %C
ret float %D
}
; 'fdiv' can only fold on the divisor amount.
define float @select_fdiv_invalid(i1 %cond, float %A, float %B) {
; CHECK-LABEL: @select_fdiv_invalid(
; CHECK-NEXT: [[C:%.*]] = fdiv float [[B:%.*]], [[A:%.*]]
; CHECK-NEXT: [[D:%.*]] = select i1 [[COND:%.*]], float [[C]], float [[A]]
; CHECK-NEXT: ret float [[D]]
;
%C = fdiv float %B, %A
%D = select i1 %cond, float %C, float %A
ret float %D
}
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