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| author | Erik Verbruggen <erikjv@me.com> | 2014-08-21 10:45:30 +0000 |
|---|---|---|
| committer | Erik Verbruggen <erikjv@me.com> | 2014-08-21 10:45:30 +0000 |
| commit | 2b98bd2a80aea506506c6479e87283330edef86c (patch) | |
| tree | 53e12be0117a60b8b41c6755189d68294d4beed2 /llvm/test/Transforms/Reassociate/fast-basictest.ll | |
| parent | b791ef21d2a11b9117abac5cc40ccae73a22c2a8 (diff) | |
| download | bcm5719-llvm-2b98bd2a80aea506506c6479e87283330edef86c.tar.gz bcm5719-llvm-2b98bd2a80aea506506c6479e87283330edef86c.zip | |
Reassociate x + -0.1234 * y into x - 0.1234 * y
This does not require -ffast-math, and it gives CSE/GVN more options to
eliminate duplicate expressions in, e.g.:
return ((x + 0.1234 * y) * (x - 0.1234 * y));
Differential Revision: http://reviews.llvm.org/D4904
llvm-svn: 216169
Diffstat (limited to 'llvm/test/Transforms/Reassociate/fast-basictest.ll')
| -rw-r--r-- | llvm/test/Transforms/Reassociate/fast-basictest.ll | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/llvm/test/Transforms/Reassociate/fast-basictest.ll b/llvm/test/Transforms/Reassociate/fast-basictest.ll index 72808cd39f2..67b07f4d269 100644 --- a/llvm/test/Transforms/Reassociate/fast-basictest.ll +++ b/llvm/test/Transforms/Reassociate/fast-basictest.ll @@ -193,7 +193,7 @@ define float @test13(float %X1, float %X2, float %X3) { define float @test14(float %X1, float %X2) { ; CHECK-LABEL: @test14 ; CHECK-NEXT: fsub fast float %X1, %X2 -; CHECK-NEXT: fmul fast float %tmp, 4.700000e+01 +; CHECK-NEXT: fmul fast float %1, 4.700000e+01 ; CHECK-NEXT: ret float %B = fmul fast float %X1, 47. ; X1*47 |
