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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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37841 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dan Gohman 2007-07-02 15:43:20 +00:00
parent ff8b732feb
commit 03de31acae
1 changed files with 12 additions and 0 deletions
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12
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
}