derek.holloway
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55 lines
1.5 KiB
Plaintext
55 lines
1.5 KiB
Plaintext
; REQUIRES: x86
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; RUN: rm -rf %t && split-file %s %t && cd %t
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; RUN: llvm-as main.ll -o main.o
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; RUN: llvm-as puts.ll -o puts.o
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; RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux-gnu printf.s -o printf.o
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; RUN: llvm-ar rcs libc.a puts.o printf.o
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;; Ensure that no printf->puts translation occurs during LTO because puts is in
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;; bitcode, but was not brought into the link. This would fail the link by
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;; extracting bitcode after LTO.
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; RUN: ld.lld -o out main.o libc.a
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; RUN: llvm-nm out | FileCheck %s
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;; Test the same behavior with lazy objects.
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; RUN: ld.lld -o out-lazy main.o --start-lib puts.o --end-lib printf.o
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; RUN: llvm-nm out-lazy | FileCheck %s
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;; Test that translation DOES occur when puts is extracted and brought into the link.
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; RUN: ld.lld -o out-extracted main.o puts.o printf.o
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; RUN: llvm-nm out-extracted | FileCheck %s --check-prefix=EXTRACTED
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; CHECK-NOT: puts
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; CHECK: printf
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; EXTRACTED: printf
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; EXTRACTED: puts
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;--- puts.ll
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target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-unknown-linux-gnu"
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define i32 @puts(ptr nocapture readonly %0) noinline {
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call void asm sideeffect "", ""()
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ret i32 0
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}
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;--- printf.s
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.globl printf
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printf:
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ret
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;--- main.ll
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target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-unknown-linux-gnu"
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@str = constant [5 x i8] c"foo\0A\00"
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define i32 @_start() {
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%call = call i32 (ptr, ...) @printf(ptr @str)
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ret i32 0
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}
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declare i32 @printf(ptr, ...)
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