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annotate test/CodeGen/X86/2006-10-19-SwitchUnnecessaryBranching.ll @ 100:7d135dc70f03 LLVM 3.9

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LLVM 3.9
author Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
date Tue, 26 Jan 2016 22:53:40 +0900
parents afa8332a0e37
children 803732b1fca8
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1 ; RUN: llc < %s -march=x86 -asm-verbose | FileCheck %s
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3 @str = internal constant [14 x i8] c"Hello world!\0A\00" ; <[14 x i8]*> [#uses=1]
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4 @str.upgrd.1 = internal constant [13 x i8] c"Blah world!\0A\00" ; <[13 x i8]*> [#uses=1]
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6 define i32 @test(i32 %argc, i8** %argv) nounwind {
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7 entry:
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8 ; CHECK: cmpl $2
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afa8332a0e37 LLVM 3.8
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9 ; CHECK-NEXT: je
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10 ; CHECK-NEXT: %entry
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12 switch i32 %argc, label %UnifiedReturnBlock [
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13 i32 1, label %bb
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14 i32 2, label %bb2
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15 ]
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17 bb: ; preds = %entry
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18 %tmp1 = tail call i32 (i8*, ...) @printf( i8* getelementptr ([14 x i8], [14 x i8]* @str, i32 0, i64 0) ) ; <i32> [#uses=0]
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19 ret i32 0
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21 bb2: ; preds = %entry
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22 %tmp4 = tail call i32 (i8*, ...) @printf( i8* getelementptr ([13 x i8], [13 x i8]* @str.upgrd.1, i32 0, i64 0) ) ; <i32> [#uses=0]
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23 ret i32 0
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25 UnifiedReturnBlock: ; preds = %entry
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26 ret i32 0
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27 }
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29 declare i32 @printf(i8*, ...)