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2543acd169
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222705 91177308-0d34-0410-b5e6-96231b3b80d8
126 lines
3.6 KiB
LLVM
126 lines
3.6 KiB
LLVM
; RUN: opt -S -instcombine < %s | FileCheck %s
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; CHECK-LABEL: @select_max_ugt(
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; CHECK: %cmp.inv = fcmp ole float %a, %b
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; CHECK-NEXT: %sel = select i1 %cmp.inv, float %b, float %a
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; CHECK-NEXT: ret float %sel
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define float @select_max_ugt(float %a, float %b) {
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%cmp = fcmp ugt float %a, %b
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%sel = select i1 %cmp, float %a, float %b
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ret float %sel
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}
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; CHECK-LABEL: @select_max_uge(
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; CHECK: %cmp.inv = fcmp olt float %a, %b
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; CHECK-NEXT: %sel = select i1 %cmp.inv, float %b, float %a
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; CHECK-NEXT: ret float %sel
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define float @select_max_uge(float %a, float %b) {
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%cmp = fcmp uge float %a, %b
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%sel = select i1 %cmp, float %a, float %b
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ret float %sel
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}
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; CHECK-LABEL: @select_min_ugt(
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; CHECK: %cmp.inv = fcmp ole float %a, %b
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; CHECK-NEXT: %sel = select i1 %cmp.inv, float %a, float %b
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; CHECK-NEXT: ret float %sel
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define float @select_min_ugt(float %a, float %b) {
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%cmp = fcmp ugt float %a, %b
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%sel = select i1 %cmp, float %b, float %a
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ret float %sel
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}
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; CHECK-LABEL: @select_min_uge(
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; CHECK: %cmp.inv = fcmp olt float %a, %b
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; CHECK-NEXT: %sel = select i1 %cmp.inv, float %a, float %b
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; CHECK-NEXT: ret float %sel
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define float @select_min_uge(float %a, float %b) {
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%cmp = fcmp uge float %a, %b
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%sel = select i1 %cmp, float %b, float %a
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ret float %sel
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}
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; CHECK-LABEL: @select_max_ult(
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; CHECK: %cmp.inv = fcmp oge float %a, %b
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; CHECK-NEXT: %sel = select i1 %cmp.inv, float %a, float %b
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; CHECK-NEXT: ret float %sel
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define float @select_max_ult(float %a, float %b) {
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%cmp = fcmp ult float %a, %b
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%sel = select i1 %cmp, float %b, float %a
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ret float %sel
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}
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; CHECK-LABEL: @select_max_ule(
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; CHECK: %cmp.inv = fcmp ogt float %a, %b
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; CHECK-NEXT: %sel = select i1 %cmp.inv, float %a, float %b
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; CHECK: ret float %sel
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define float @select_max_ule(float %a, float %b) {
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%cmp = fcmp ule float %a, %b
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%sel = select i1 %cmp, float %b, float %a
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ret float %sel
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}
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; CHECK-LABEL: @select_min_ult(
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; CHECK: %cmp.inv = fcmp oge float %a, %b
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; CHECK-NEXT: %sel = select i1 %cmp.inv, float %b, float %a
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; CHECK-NEXT: ret float %sel
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define float @select_min_ult(float %a, float %b) {
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%cmp = fcmp ult float %a, %b
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%sel = select i1 %cmp, float %a, float %b
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ret float %sel
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}
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; CHECK-LABEL: @select_min_ule(
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; CHECK: %cmp.inv = fcmp ogt float %a, %b
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; CHECK-NEXT: %sel = select i1 %cmp.inv, float %b, float %a
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; CHECK-NEXT: ret float %sel
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define float @select_min_ule(float %a, float %b) {
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%cmp = fcmp ule float %a, %b
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%sel = select i1 %cmp, float %a, float %b
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ret float %sel
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}
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; CHECK-LABEL: @select_fcmp_une(
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; CHECK: %cmp.inv = fcmp oeq float %a, %b
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; CHECK-NEXT: %sel = select i1 %cmp.inv, float %b, float %a
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; CHECK-NEXT: ret float %sel
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define float @select_fcmp_une(float %a, float %b) {
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%cmp = fcmp une float %a, %b
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%sel = select i1 %cmp, float %a, float %b
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ret float %sel
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}
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; CHECK-LABEL: @select_fcmp_ueq
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; CHECK: %cmp.inv = fcmp one float %a, %b
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; CHECK-NEXT: %sel = select i1 %cmp.inv, float %b, float %a
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; CHECK-NEXT: ret float %sel
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define float @select_fcmp_ueq(float %a, float %b) {
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%cmp = fcmp ueq float %a, %b
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%sel = select i1 %cmp, float %a, float %b
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ret float %sel
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}
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declare void @foo(i1)
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; CHECK-LABEL: @select_max_ugt_2_use_cmp(
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; CHECK: fcmp ugt
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; CHECK-NOT: fcmp
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; CHECK: ret
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define float @select_max_ugt_2_use_cmp(float %a, float %b) {
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%cmp = fcmp ugt float %a, %b
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call void @foo(i1 %cmp)
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%sel = select i1 %cmp, float %a, float %b
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ret float %sel
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}
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; CHECK-LABEL: @select_min_uge_2_use_cmp(
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; CHECK: fcmp uge
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; CHECK-NOT: fcmp
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; CHECK: ret
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define float @select_min_uge_2_use_cmp(float %a, float %b) {
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%cmp = fcmp uge float %a, %b
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call void @foo(i1 %cmp)
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%sel = select i1 %cmp, float %b, float %a
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ret float %sel
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}
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