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annotate test/Transforms/InstCombine/wcslen-4.ll @ 121:803732b1fca8

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LLVM 5.0
author kono
date Fri, 27 Oct 2017 17:07:41 +0900
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121
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1 ; Test that the wcslen library call simplifier works correctly.
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2 ;
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3 ; RUN: opt < %s -instcombine -S | FileCheck %s
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4
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5 target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
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6
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7 ; Without the wchar_size metadata we should see no optimization happening.
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8
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9 @hello = constant [6 x i32] [i32 104, i32 101, i32 108, i32 108, i32 111, i32 0]
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10
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11 declare i64 @wcslen(i32*)
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12
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13 define i64 @test_no_simplify1() {
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14 ; CHECK-LABEL: @test_no_simplify1(
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15 ; CHECK-NEXT: %hello_l = call i64 @wcslen(i32* getelementptr inbounds ([6 x i32], [6 x i32]* @hello, i64 0, i64 0))
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16 ; CHECK-NEXT: ret i64 %hello_l
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17 %hello_p = getelementptr [6 x i32], [6 x i32]* @hello, i64 0, i64 0
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18 %hello_l = call i64 @wcslen(i32* %hello_p)
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19 ret i64 %hello_l
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20 }