[llvm] r368447 - [NFC] Added tests for D65898

[David Bolvansky via llvm-commits]

Author: xbolva00
Date: Fri Aug  9 08:52:26 2019
New Revision: 368447

URL: http://llvm.org/viewvc/llvm-project?rev=368447&view=rev
Log:
[NFC] Added tests for D65898

Modified:
    llvm/trunk/test/Transforms/InstCombine/fabs-copysign.ll

Modified: llvm/trunk/test/Transforms/InstCombine/fabs-copysign.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Transforms/InstCombine/fabs-copysign.ll?rev=368447&r1=368446&r2=368447&view=diff
==============================================================================
--- llvm/trunk/test/Transforms/InstCombine/fabs-copysign.ll (original)
+++ llvm/trunk/test/Transforms/InstCombine/fabs-copysign.ll Fri Aug  9 08:52:26 2019
@@ -19,6 +19,17 @@ define double @fabs_copysign(double %x)
   ret double %div
 }
 
+define double @fabs_copysign_commuted(double %x) {
+; CHECK-LABEL: @fabs_copysign_commuted(
+; CHECK-NEXT:    [[F:%.*]] = tail call double @llvm.fabs.f64(double [[X:%.*]])
+; CHECK-NEXT:    [[DIV:%.*]] = fdiv nnan ninf double [[F]], [[X]]
+; CHECK-NEXT:    ret double [[DIV]]
+;
+  %f = tail call double @llvm.fabs.f64(double %x)
+  %div = fdiv nnan ninf double %f, %x
+  ret double %div
+}
+
 
 define float @fabs_copysignf(float %x) {
 ; CHECK-LABEL: @fabs_copysignf(
@@ -34,10 +45,12 @@ define float @fabs_copysignf(float %x) {
 define double @fabs_copysign_use(double %x) {
 ; CHECK-LABEL: @fabs_copysign_use(
 ; CHECK-NEXT:    [[F:%.*]] = tail call double @llvm.fabs.f64(double [[X:%.*]])
+; CHECK-NEXT:    call void @use(double [[F]])
 ; CHECK-NEXT:    [[DIV:%.*]] = fdiv nnan ninf double [[X]], [[F]]
 ; CHECK-NEXT:    ret double [[DIV]]
 ;
   %f = tail call double @llvm.fabs.f64(double %x)
+  call void @use(double %f)
   %div = fdiv nnan ninf double %x, %f
   ret double %div
 }
@@ -55,6 +68,17 @@ define double @fabs_copysign_mismatch(do
   ret double %div
 }
 
+define double @fabs_copysign_commuted_mismatch(double %x, double %y) {
+; CHECK-LABEL: @fabs_copysign_commuted_mismatch(
+; CHECK-NEXT:    [[F:%.*]] = tail call double @llvm.fabs.f64(double [[Y:%.*]])
+; CHECK-NEXT:    [[DIV:%.*]] = fdiv double [[F]], [[X:%.*]]
+; CHECK-NEXT:    ret double [[DIV]]
+;
+  %f = tail call double @llvm.fabs.f64(double %y)
+  %div = fdiv double %f, %x
+  ret double %div
+}
+
 define double @fabs_copysign_no_nnan(double %x) {
 ; CHECK-LABEL: @fabs_copysign_no_nnan(
 ; CHECK-NEXT:    [[F:%.*]] = tail call double @llvm.fabs.f64(double [[X:%.*]])