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annotate test/CodeGen/X86/2008-02-20-InlineAsmClobber.ll @ 77:54457678186b LLVM3.6

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LLVM 3.6
author Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
date Mon, 08 Sep 2014 22:06:00 +0900
parents 95c75e76d11b
children afa8332a0e37
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77
54457678186b LLVM 3.6
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1 ; RUN: llc -no-integrated-as < %s | FileCheck %s
0
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2 ; PR2078
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3 ; The clobber list says that "ax" is clobbered. Make sure that eax isn't
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4 ; allocated to the input/output register.
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5 target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
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6 target triple = "i386-apple-darwin8"
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7 @pixels = weak global i32 0 ; <i32*> [#uses=2]
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8
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9 define void @test() nounwind {
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10 entry:
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11 %tmp = load i32* @pixels, align 4 ; <i32> [#uses=1]
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12 %tmp1 = tail call i32 asm sideeffect "a: $0 $1", "=r,0,~{dirflag},~{fpsr},~{flags},~{ax}"( i32 %tmp ) nounwind ; <i32> [#uses=1]
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13 store i32 %tmp1, i32* @pixels, align 4
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14 ret void
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15 }
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16
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17 ; CHECK: a:
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18 ; CHECK-NOT: ax
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19 ; CHECK: {{$}}
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20
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21 define void @test2(i16* %block, i8* %pixels, i32 %line_size) nounwind {
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22 entry:
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23 %tmp1 = getelementptr i16* %block, i32 64 ; <i16*> [#uses=1]
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24 %tmp3 = tail call i8* asm sideeffect "b: $0 $1 $2", "=r,r,0,~{dirflag},~{fpsr},~{flags},~{ax}"( i16* %tmp1, i8* %pixels ) nounwind ; <i8*> [#uses=0]
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25 ret void
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26 }
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27
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28 ; CHECK: b:
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29 ; CHECK-NOT: ax
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30 ; CHECK: {{$}}