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annotate test/Transforms/InstCombine/strlen-2.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 ; Test that the strlen library call simplifier works correctly.
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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2 ;
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3 ; RUN: opt < %s -instcombine -S | FileCheck %s
95c75e76d11b LLVM 3.4
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4
95c75e76d11b LLVM 3.4
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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"
95c75e76d11b LLVM 3.4
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6
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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7 @hello = constant [6 x i8] c"hello\00"
95c75e76d11b LLVM 3.4
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8
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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9 declare i32 @strlen(i8*, i32)
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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10
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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11 define i32 @test_no_simplify1() {
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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12 ; CHECK-LABEL: @test_no_simplify1(
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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13 %hello_p = getelementptr [6 x i8]* @hello, i32 0, i32 0
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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14 %hello_l = call i32 @strlen(i8* %hello_p, i32 187)
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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15 ; CHECK-NEXT: %hello_l = call i32 @strlen
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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16 ret i32 %hello_l
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17 ; CHECK-NEXT: ret i32 %hello_l
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18 }