forked from OSchip/llvm-project
21 lines
712 B
LLVM
21 lines
712 B
LLVM
; Test that the wcslen library call simplifier works correctly.
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;
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; RUN: opt < %s -instcombine -S | FileCheck %s
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target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
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; Without the wchar_size metadata we should see no optimization happening.
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@hello = constant [6 x i32] [i32 104, i32 101, i32 108, i32 108, i32 111, i32 0]
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declare i64 @wcslen(i32*)
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define i64 @test_no_simplify1() {
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; CHECK-LABEL: @test_no_simplify1(
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; 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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; CHECK-NEXT: ret i64 %hello_l
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%hello_p = getelementptr [6 x i32], [6 x i32]* @hello, i64 0, i64 0
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%hello_l = call i64 @wcslen(i32* %hello_p)
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ret i64 %hello_l
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}
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