55fa315b03
This matches LLD and fixes https://sourceware.org/bugzilla/show_bug.cgi?id=26262#c1 .o is a bad choice for save-temps output because it is easy to override the bitcode file (*.o) ``` # Use bfd for the example, -fuse-ld=gold is similar. clang -flto -c a.c # generate bitcode file a.o clang -fuse-ld=bfd -flto a.o -o a -Wl,-plugin-opt=save-temps # override a.o # The user repeats the command but get surprised, because a.o is now a combined module. clang -fuse-ld=bfd -flto a.o -o a -Wl,-plugin-opt=save-temps ``` Reviewed By: tejohnson Differential Revision: https://reviews.llvm.org/D84132
31 lines
1.0 KiB
LLVM
31 lines
1.0 KiB
LLVM
; RUN: llvm-as -o %t.bc %s
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; RUN: rm -f %t.0.5.precodegen.bc %t.1.5.precodegen.bc %t.lto.o %t.lto.o1
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; RUN: env LD_PRELOAD=%llvmshlibdir/LLVMgold%shlibext %gold -plugin %llvmshlibdir/LLVMgold%shlibext -u foo -u bar -plugin-opt lto-partitions=2 -plugin-opt save-temps -m elf_x86_64 -o %t %t.bc
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; RUN: llvm-dis %t.0.5.precodegen.bc -o - | FileCheck --check-prefix=CHECK-BC0 %s
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; RUN: llvm-dis %t.1.5.precodegen.bc -o - | FileCheck --check-prefix=CHECK-BC1 %s
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; RUN: llvm-nm %t.lto.o | FileCheck --check-prefix=CHECK0 %s
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; RUN: llvm-nm %t.lto.o1 | FileCheck --check-prefix=CHECK1 %s
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target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-unknown-linux-gnu"
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; CHECK-BC0: define dso_local void @foo
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; CHECK-BC0: declare dso_local void @bar
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; CHECK0-NOT: bar
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; CHECK0: T foo
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; CHECK0-NOT: bar
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define void @foo() {
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call void @bar()
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ret void
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}
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; CHECK-BC1: declare dso_local void @foo
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; CHECK-BC1: define dso_local void @bar
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; CHECK1-NOT: foo
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; CHECK1: T bar
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; CHECK1-NOT: foo
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define void @bar() {
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call void @foo()
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ret void
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}
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