[InstCombine] regenerate test checks; NFC

llvm-svn: 318420

llvm/test/Transforms/InstCombine/pow-sqrt.ll

 ; RUN: opt < %s -instcombine -S | FileCheck %s
 
 define double @pow_half(double %x) {
+; CHECK-LABEL: @pow_half(
+; CHECK-NEXT:    [[SQRT:%.*]] = call fast double @sqrt(double %x) #1
+; CHECK-NEXT:    ret double [[SQRT]]
+;
   %pow = call fast double @llvm.pow.f64(double %x, double 5.000000e-01)
   ret double %pow
 }
 
-; CHECK-LABEL: define double @pow_half(
-; CHECK-NEXT:  %sqrt = call fast double @sqrt(double %x) #1
-; CHECK-NEXT:  ret double %sqrt
-
 define double @pow_neghalf(double %x) {
+; CHECK-LABEL: @pow_neghalf(
+; CHECK-NEXT:    [[SQRT:%.*]] = call fast double @sqrt(double %x) #1
+; CHECK-NEXT:    [[SQRTRECIP:%.*]] = fdiv fast double 1.000000e+00, [[SQRT]]
+; CHECK-NEXT:    ret double [[SQRTRECIP]]
+;
   %pow = call fast double @llvm.pow.f64(double %x, double -5.000000e-01)
   ret double %pow
 }
 
-; CHECK-LABEL: define double @pow_neghalf(
-; CHECK-NEXT: %sqrt = call fast double @sqrt(double %x) #1
-; CHECK-NEXT: %sqrtrecip = fdiv fast double 1.000000e+00, %sqrt
-; CHECK-NEXT: ret double %sqrtrecip
-
 declare double @llvm.pow.f64(double, double) #0
 
 attributes #0 = { nounwind readnone speculatable }