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authorOwen Anderson <resistor@mac.com>2014-01-16 21:07:52 +0000
committerOwen Anderson <resistor@mac.com>2014-01-16 21:07:52 +0000
commit4557a156e382fdd829a390ee9b41a1db7a8d6f9f (patch)
tree6b5da93a2f3d3955f4e60ef96d3a0897c0a94b41 /llvm/test
parente8537fc7e0ac25c9438ab92829203a0364f78f6a (diff)
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Fix an instance where we would drop fast math flags when performing an fdiv to reciprocal multiply transformation.
llvm-svn: 199425
Diffstat (limited to 'llvm/test')
-rw-r--r--llvm/test/Transforms/InstCombine/fdiv.ll8
1 files changed, 8 insertions, 0 deletions
diff --git a/llvm/test/Transforms/InstCombine/fdiv.ll b/llvm/test/Transforms/InstCombine/fdiv.ll
index 1edbc5ecd60..c3aabd78666 100644
--- a/llvm/test/Transforms/InstCombine/fdiv.ll
+++ b/llvm/test/Transforms/InstCombine/fdiv.ll
@@ -23,3 +23,11 @@ define float @test3(float %x) nounwind readnone ssp {
; CHECK-LABEL: @test3(
; CHECK-NEXT: fdiv float %x, 0x36A0000000000000
}
+
+define float @test4(float %x) nounwind readnone ssp {
+ %div = fdiv fast float %x, 8.0
+ ret float %div
+
+; CHECK-LABEL: @test4(
+; CHECK-NEXT: fmul fast float %x, 1.250000e-01
+}
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