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annotate test/CodeGen/X86/neg_fp.ll @ 52:c22698ecb2a9

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modified CreateIdentifierInfo and create new function which was named 'CreateUniqueIdentifierInfo'.
author Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
date Wed, 15 Jan 2014 21:01:33 +0900
parents 95c75e76d11b
children 803732b1fca8
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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1 ; RUN: llc < %s -march=x86 -mattr=+sse4.1 -o %t
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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2 ; RUN: grep xorps %t | count 1
95c75e76d11b LLVM 3.4
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95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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4 ; Test that when we don't -enable-unsafe-fp-math, we don't do the optimization
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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5 ; -0 - (A - B) to (B - A) because A==B, -0 != 0
95c75e76d11b LLVM 3.4
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95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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7 define float @negfp(float %a, float %b) {
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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8 entry:
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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9 %sub = fsub float %a, %b ; <float> [#uses=1]
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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10 %neg = fsub float -0.000000e+00, %sub ; <float> [#uses=1]
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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11 ret float %neg
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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12 }