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2920a71663
This patch migrates the math library call simplifications from the
simplify-libcalls pass into the instcombine library call simplifier.
I have typically migrated just one simplifier at a time, but the math
simplifiers are interdependent because:
1. CosOpt, PowOpt, and Exp2Opt all depend on UnaryDoubleFPOpt.
2. CosOpt, PowOpt, Exp2Opt, and UnaryDoubleFPOpt all depend on
the option -enable-double-float-shrink.
These two factors made migrating each of these simplifiers individually
more of a pain than it would be worth. So, I migrated them all together.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167815 91177308-0d34-0410-b5e6-96231b3b80d8
15 lines
427 B
LLVM
15 lines
427 B
LLVM
; Test that the pow library call simplifier works correctly.
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;
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; RUN: opt < %s -instcombine -S | FileCheck %s
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declare float @pow(double, double)
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; Check that pow functions with the wrong prototype aren't simplified.
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define float @test_no_simplify1(double %x) {
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; CHECK: @test_no_simplify1
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%retval = call float @pow(double 1.0, double %x)
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; CHECK-NEXT: call float @pow(double 1.000000e+00, double %x)
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ret float %retval
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}
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