Mercurial > hg > Members > tobaru > cbc > CbC_llvm
view test/CodeGen/X86/mul-shift-reassoc.ll @ 33:e4204d083e25
LLVM 3.5
author | Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp> |
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date | Thu, 12 Dec 2013 14:32:10 +0900 |
parents | 95c75e76d11b |
children | 803732b1fca8 |
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; RUN: llc < %s -march=x86 | grep lea ; RUN: llc < %s -march=x86 | not grep add define i32 @test(i32 %X, i32 %Y) { ; Push the shl through the mul to allow an LEA to be formed, instead ; of using a shift and add separately. %tmp.2 = shl i32 %X, 1 ; <i32> [#uses=1] %tmp.3 = mul i32 %tmp.2, %Y ; <i32> [#uses=1] %tmp.5 = add i32 %tmp.3, %Y ; <i32> [#uses=1] ret i32 %tmp.5 }