llvm-project

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; RUN: opt -S -passes=instcombine <%s | FileCheck %s
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; rdar://problem/16165191
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; llvm.compiler.used functions should not be renamed
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target triple = "x86_64-apple-darwin11"
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@llvm.compiler.used = appending global [1 x ptr] [
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  ptr @puts
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  ], section "llvm.metadata"
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@llvm.used = appending global [1 x ptr] [
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  ptr @uses_printf
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  ], section "llvm.metadata"
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@str = private unnamed_addr constant [13 x i8] c"hello world\0A\00"
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define i32 @uses_printf(i32 %i) {
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entry:
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  call i32 (ptr, ...) @printf(ptr @str)
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  ret i32 0
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}
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define internal i32 @printf(ptr readonly nocapture %fmt, ...) {
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entry:
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  %ret = call i32 @bar(ptr %fmt)
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  ret i32 %ret
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}
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; CHECK: define {{.*}} @puts(
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define internal i32 @puts(ptr %s) {
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entry:
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  %ret = call i32 @bar(ptr %s)
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  ret i32 %ret
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}
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declare i32 @bar(ptr)
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