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New test case. DAGCombiner should be able to fold -sin(-x)

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in -enable-unsafe-fp-math mode.

llvm-svn: 37841
This commit is contained in:
Dan Gohman 2007-07-02 15:43:20 +00:00
parent 7cf351b873
commit f46ec01deb
1 changed files with 12 additions and 0 deletions
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test/CodeGen/X86/negative-sin.ll Normal file
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; RUN: llvm-as < %s | llc -enable-unsafe-fp-math -march=x86-64 | \
; RUN: not egrep {addsd|subsd|xor}
declare double @sin(double %f)
define double @foo(double %e)
{
%f = sub double 0.0, %e
%g = call double @sin(double %f)
%h = sub double 0.0, %g
ret double %h
}