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annotate test/CodeGen/X86/clobber-fi0.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 60c9769439b8
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95c75e76d11b LLVM 3.4
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1 ; RUN: llc < %s -mcpu=generic -mtriple=x86_64-linux | FileCheck %s
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3 target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
95c75e76d11b LLVM 3.4
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4 target triple = "x86_64-apple-macosx10.7.0"
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6 ; In the code below we need to copy the EFLAGS because of scheduling constraints.
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7 ; When copying the EFLAGS we need to write to the stack with push/pop. This forces
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8 ; us to emit the prolog.
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10 ; CHECK: main
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11 ; CHECK: subq{{.*}}rsp
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12 ; CHECK: ret
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13 define i32 @main(i32 %arg, i8** %arg1) nounwind {
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14 bb:
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15 %tmp = alloca i32, align 4 ; [#uses=3 type=i32*]
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16 %tmp2 = alloca i32, align 4 ; [#uses=3 type=i32*]
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17 %tmp3 = alloca i32 ; [#uses=1 type=i32*]
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18 store i32 1, i32* %tmp, align 4
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19 store i32 1, i32* %tmp2, align 4
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20 br label %bb4
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22 bb4: ; preds = %bb4, %bb
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23 %tmp6 = load i32* %tmp2, align 4 ; [#uses=1 type=i32]
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24 %tmp7 = add i32 %tmp6, -1 ; [#uses=2 type=i32]
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25 store i32 %tmp7, i32* %tmp2, align 4
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26 %tmp8 = icmp eq i32 %tmp7, 0 ; [#uses=1 type=i1]
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27 %tmp9 = load i32* %tmp ; [#uses=1 type=i32]
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28 %tmp10 = add i32 %tmp9, -1 ; [#uses=1 type=i32]
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29 store i32 %tmp10, i32* %tmp3
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30 br i1 %tmp8, label %bb11, label %bb4
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31
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32 bb11: ; preds = %bb4
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33 %tmp12 = load i32* %tmp, align 4 ; [#uses=1 type=i32]
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34 ret i32 %tmp12
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35 }
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