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annotate test/CodeGen/X86/2006-05-08-CoalesceSubRegClass.ll @ 0:95c75e76d11b LLVM3.4

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LLVM 3.4
author Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
date Thu, 12 Dec 2013 13:56:28 +0900
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children afa8332a0e37
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95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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1 ; Coalescing from R32 to a subset R32_. Once another register coalescer bug is
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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2 ; fixed, the movb should go away as well.
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4 ; RUN: llc < %s -march=x86 -relocation-model=static | \
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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5 ; RUN: grep movl
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7 @B = external global i32 ; <i32*> [#uses=2]
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8 @C = external global i16* ; <i16**> [#uses=2]
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10 define void @test(i32 %A) {
95c75e76d11b LLVM 3.4
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11 %A.upgrd.1 = trunc i32 %A to i8 ; <i8> [#uses=1]
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12 %tmp2 = load i32* @B ; <i32> [#uses=1]
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13 %tmp3 = and i8 %A.upgrd.1, 16 ; <i8> [#uses=1]
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14 %shift.upgrd.2 = zext i8 %tmp3 to i32 ; <i32> [#uses=1]
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15 %tmp4 = shl i32 %tmp2, %shift.upgrd.2 ; <i32> [#uses=1]
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16 store i32 %tmp4, i32* @B
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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17 %tmp6 = lshr i32 %A, 3 ; <i32> [#uses=1]
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18 %tmp = load i16** @C ; <i16*> [#uses=1]
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19 %tmp8 = ptrtoint i16* %tmp to i32 ; <i32> [#uses=1]
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20 %tmp9 = add i32 %tmp8, %tmp6 ; <i32> [#uses=1]
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21 %tmp9.upgrd.3 = inttoptr i32 %tmp9 to i16* ; <i16*> [#uses=1]
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22 store i16* %tmp9.upgrd.3, i16** @C
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23 ret void
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24 }
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