[InstCombine] add fast-math-flags for better test coverage; NFC

In all cases, we currently unintentionally drop the FMF on the new select.

diff --git a/llvm/test/Transforms/InstCombine/unordered-fcmp-select.ll b/llvm/test/Transforms/InstCombine/unordered-fcmp-select.ll
index 9b46434..07e12d7 100644 (file)
--- a/llvm/test/Transforms/InstCombine/unordered-fcmp-select.ll
+++ b/llvm/test/Transforms/InstCombine/unordered-fcmp-select.ll
@@ -2,139 +2,139 @@
 ; RUN: opt -S -instcombine < %s | FileCheck %s
 
 define float @select_max_ugt(float %a, float %b) {
-; CHECK-LABEL: @select_max_ugt(
-; CHECK-NEXT:    [[CMP_INV:%.*]] = fcmp ole float [[A:%.*]], [[B:%.*]]
+; CHECK-LABEL: define {{[^@]+}}@select_max_ugt(
+; CHECK-NEXT:    [[CMP_INV:%.*]] = fcmp arcp ole float [[A:%.*]], [[B:%.*]]
 ; CHECK-NEXT:    [[SEL:%.*]] = select i1 [[CMP_INV]], float [[B]], float [[A]]
 ; CHECK-NEXT:    ret float [[SEL]]
 ;
-  %cmp = fcmp ugt float %a, %b
-  %sel = select i1 %cmp, float %a, float %b
+  %cmp = fcmp arcp ugt float %a, %b
+  %sel = select arcp i1 %cmp, float %a, float %b
   ret float %sel
 }
 
 define float @select_max_uge(float %a, float %b) {
-; CHECK-LABEL: @select_max_uge(
-; CHECK-NEXT:    [[CMP_INV:%.*]] = fcmp olt float [[A:%.*]], [[B:%.*]]
+; CHECK-LABEL: define {{[^@]+}}@select_max_uge(
+; CHECK-NEXT:    [[CMP_INV:%.*]] = fcmp nnan olt float [[A:%.*]], [[B:%.*]]
 ; CHECK-NEXT:    [[SEL:%.*]] = select i1 [[CMP_INV]], float [[B]], float [[A]]
 ; CHECK-NEXT:    ret float [[SEL]]
 ;
-  %cmp = fcmp uge float %a, %b
-  %sel = select i1 %cmp, float %a, float %b
+  %cmp = fcmp nnan uge float %a, %b
+  %sel = select ninf i1 %cmp, float %a, float %b
   ret float %sel
 }
 
 define float @select_min_ugt(float %a, float %b) {
-; CHECK-LABEL: @select_min_ugt(
-; CHECK-NEXT:    [[CMP_INV:%.*]] = fcmp ole float [[A:%.*]], [[B:%.*]]
+; CHECK-LABEL: define {{[^@]+}}@select_min_ugt(
+; CHECK-NEXT:    [[CMP_INV:%.*]] = fcmp fast ole float [[A:%.*]], [[B:%.*]]
 ; CHECK-NEXT:    [[SEL:%.*]] = select i1 [[CMP_INV]], float [[A]], float [[B]]
 ; CHECK-NEXT:    ret float [[SEL]]
 ;
-  %cmp = fcmp ugt float %a, %b
-  %sel = select i1 %cmp, float %b, float %a
+  %cmp = fcmp fast ugt float %a, %b
+  %sel = select reassoc i1 %cmp, float %b, float %a
   ret float %sel
 }
 
 define float @select_min_uge(float %a, float %b) {
-; CHECK-LABEL: @select_min_uge(
-; CHECK-NEXT:    [[CMP_INV:%.*]] = fcmp olt float [[A:%.*]], [[B:%.*]]
+; CHECK-LABEL: define {{[^@]+}}@select_min_uge(
+; CHECK-NEXT:    [[CMP_INV:%.*]] = fcmp nsz olt float [[A:%.*]], [[B:%.*]]
 ; CHECK-NEXT:    [[SEL:%.*]] = select i1 [[CMP_INV]], float [[A]], float [[B]]
 ; CHECK-NEXT:    ret float [[SEL]]
 ;
-  %cmp = fcmp uge float %a, %b
-  %sel = select i1 %cmp, float %b, float %a
+  %cmp = fcmp nsz uge float %a, %b
+  %sel = select fast i1 %cmp, float %b, float %a
   ret float %sel
 }
 
 define float @select_max_ult(float %a, float %b) {
-; CHECK-LABEL: @select_max_ult(
-; CHECK-NEXT:    [[CMP_INV:%.*]] = fcmp oge float [[A:%.*]], [[B:%.*]]
+; CHECK-LABEL: define {{[^@]+}}@select_max_ult(
+; CHECK-NEXT:    [[CMP_INV:%.*]] = fcmp arcp oge float [[A:%.*]], [[B:%.*]]
 ; CHECK-NEXT:    [[SEL:%.*]] = select i1 [[CMP_INV]], float [[A]], float [[B]]
 ; CHECK-NEXT:    ret float [[SEL]]
 ;
-  %cmp = fcmp ult float %a, %b
-  %sel = select i1 %cmp, float %b, float %a
+  %cmp = fcmp arcp ult float %a, %b
+  %sel = select ninf nnan i1 %cmp, float %b, float %a
   ret float %sel
 }
 
 define float @select_max_ule(float %a, float %b) {
-; CHECK-LABEL: @select_max_ule(
-; CHECK-NEXT:    [[CMP_INV:%.*]] = fcmp ogt float [[A:%.*]], [[B:%.*]]
+; CHECK-LABEL: define {{[^@]+}}@select_max_ule(
+; CHECK-NEXT:    [[CMP_INV:%.*]] = fcmp fast ogt float [[A:%.*]], [[B:%.*]]
 ; CHECK-NEXT:    [[SEL:%.*]] = select i1 [[CMP_INV]], float [[A]], float [[B]]
 ; CHECK-NEXT:    ret float [[SEL]]
 ;
-  %cmp = fcmp ule float %a, %b
-  %sel = select i1 %cmp, float %b, float %a
+  %cmp = fcmp fast ule float %a, %b
+  %sel = select nsz i1 %cmp, float %b, float %a
   ret float %sel
 }
 
 define float @select_min_ult(float %a, float %b) {
-; CHECK-LABEL: @select_min_ult(
-; CHECK-NEXT:    [[CMP_INV:%.*]] = fcmp oge float [[A:%.*]], [[B:%.*]]
+; CHECK-LABEL: define {{[^@]+}}@select_min_ult(
+; CHECK-NEXT:    [[CMP_INV:%.*]] = fcmp nsz oge float [[A:%.*]], [[B:%.*]]
 ; CHECK-NEXT:    [[SEL:%.*]] = select i1 [[CMP_INV]], float [[B]], float [[A]]
 ; CHECK-NEXT:    ret float [[SEL]]
 ;
-  %cmp = fcmp ult float %a, %b
-  %sel = select i1 %cmp, float %a, float %b
+  %cmp = fcmp nsz ult float %a, %b
+  %sel = select fast i1 %cmp, float %a, float %b
   ret float %sel
 }
 
 define float @select_min_ule(float %a, float %b) {
-; CHECK-LABEL: @select_min_ule(
-; CHECK-NEXT:    [[CMP_INV:%.*]] = fcmp ogt float [[A:%.*]], [[B:%.*]]
+; CHECK-LABEL: define {{[^@]+}}@select_min_ule(
+; CHECK-NEXT:    [[CMP_INV:%.*]] = fcmp arcp ogt float [[A:%.*]], [[B:%.*]]
 ; CHECK-NEXT:    [[SEL:%.*]] = select i1 [[CMP_INV]], float [[B]], float [[A]]
 ; CHECK-NEXT:    ret float [[SEL]]
 ;
-  %cmp = fcmp ule float %a, %b
-  %sel = select i1 %cmp, float %a, float %b
+  %cmp = fcmp arcp ule float %a, %b
+  %sel = select ninf i1 %cmp, float %a, float %b
   ret float %sel
 }
 
 define float @select_fcmp_une(float %a, float %b) {
-; CHECK-LABEL: @select_fcmp_une(
-; CHECK-NEXT:    [[CMP_INV:%.*]] = fcmp oeq float [[A:%.*]], [[B:%.*]]
+; CHECK-LABEL: define {{[^@]+}}@select_fcmp_une(
+; CHECK-NEXT:    [[CMP_INV:%.*]] = fcmp reassoc oeq float [[A:%.*]], [[B:%.*]]
 ; CHECK-NEXT:    [[SEL:%.*]] = select i1 [[CMP_INV]], float [[B]], float [[A]]
 ; CHECK-NEXT:    ret float [[SEL]]
 ;
-  %cmp = fcmp une float %a, %b
-  %sel = select i1 %cmp, float %a, float %b
+  %cmp = fcmp reassoc une float %a, %b
+  %sel = select nnan i1 %cmp, float %a, float %b
   ret float %sel
 }
 
 define float @select_fcmp_ueq(float %a, float %b) {
-; CHECK-LABEL: @select_fcmp_ueq(
-; CHECK-NEXT:    [[CMP_INV:%.*]] = fcmp one float [[A:%.*]], [[B:%.*]]
+; CHECK-LABEL: define {{[^@]+}}@select_fcmp_ueq(
+; CHECK-NEXT:    [[CMP_INV:%.*]] = fcmp reassoc one float [[A:%.*]], [[B:%.*]]
 ; CHECK-NEXT:    [[SEL:%.*]] = select i1 [[CMP_INV]], float [[B]], float [[A]]
 ; CHECK-NEXT:    ret float [[SEL]]
 ;
-  %cmp = fcmp ueq float %a, %b
-  %sel = select i1 %cmp, float %a, float %b
+  %cmp = fcmp reassoc ueq float %a, %b
+  %sel = select arcp nnan i1 %cmp, float %a, float %b
   ret float %sel
 }
 
 declare void @foo(i1)
 
 define float @select_max_ugt_2_use_cmp(float %a, float %b) {
-; CHECK-LABEL: @select_max_ugt_2_use_cmp(
-; CHECK-NEXT:    [[CMP:%.*]] = fcmp ugt float [[A:%.*]], [[B:%.*]]
+; CHECK-LABEL: define {{[^@]+}}@select_max_ugt_2_use_cmp(
+; CHECK-NEXT:    [[CMP:%.*]] = fcmp reassoc ugt float [[A:%.*]], [[B:%.*]]
 ; CHECK-NEXT:    call void @foo(i1 [[CMP]])
-; CHECK-NEXT:    [[SEL:%.*]] = select i1 [[CMP]], float [[A]], float [[B]]
+; CHECK-NEXT:    [[SEL:%.*]] = select fast i1 [[CMP]], float [[A]], float [[B]]
 ; CHECK-NEXT:    ret float [[SEL]]
 ;
-  %cmp = fcmp ugt float %a, %b
+  %cmp = fcmp reassoc ugt float %a, %b
   call void @foo(i1 %cmp)
-  %sel = select i1 %cmp, float %a, float %b
+  %sel = select fast i1 %cmp, float %a, float %b
   ret float %sel
 }
 
 define float @select_min_uge_2_use_cmp(float %a, float %b) {
-; CHECK-LABEL: @select_min_uge_2_use_cmp(
-; CHECK-NEXT:    [[CMP:%.*]] = fcmp uge float [[A:%.*]], [[B:%.*]]
+; CHECK-LABEL: define {{[^@]+}}@select_min_uge_2_use_cmp(
+; CHECK-NEXT:    [[CMP:%.*]] = fcmp ninf uge float [[A:%.*]], [[B:%.*]]
 ; CHECK-NEXT:    call void @foo(i1 [[CMP]])
-; CHECK-NEXT:    [[SEL:%.*]] = select i1 [[CMP]], float [[B]], float [[A]]
+; CHECK-NEXT:    [[SEL:%.*]] = select nsz i1 [[CMP]], float [[B]], float [[A]]
 ; CHECK-NEXT:    ret float [[SEL]]
 ;
-  %cmp = fcmp uge float %a, %b
+  %cmp = fcmp ninf uge float %a, %b
   call void @foo(i1 %cmp)
-  %sel = select i1 %cmp, float %b, float %a
+  %sel = select nsz i1 %cmp, float %b, float %a
   ret float %sel
 }