mirror of
https://github.com/llvm/llvm-project.git
synced 2025-04-17 16:26:42 +00:00
f1ba8943c8
Co-authored-by: Billy Laws <blaws05@gmail.com> Anti-dependency symbols are allowed to be duplicated, with the first definition taking precedence. If a regular weak alias is present, it is preferred over an anti-dependency definition. Chaining anti-dependencies is not allowed.
69 lines
1.9 KiB
Plaintext
69 lines
1.9 KiB
Plaintext
REQUIRES: x86
|
|
RUN: split-file %s %t.dir && cd %t.dir
|
|
|
|
RUN: llvm-mc -filetype=obj -triple=x86_64-windows chain-bad.s -o chain-bad.obj
|
|
RUN: llvm-mc -filetype=obj -triple=x86_64-windows chain-bad2.s -o chain-bad2.obj
|
|
RUN: llvm-mc -filetype=obj -triple=x86_64-windows globals-bad.s -o globals-bad.obj
|
|
RUN: llvm-mc -filetype=obj -triple=x86_64-windows chain-good.s -o chain-good.obj
|
|
RUN: llvm-mc -filetype=obj -triple=x86_64-windows chain-good2.s -o chain-good2.obj
|
|
RUN: llvm-mc -filetype=obj -triple=x86_64-windows globals-good.s -o globals-good.obj
|
|
|
|
Temporary anti-dependency chains are allowed as long as they are broken by non-alias symbols.
|
|
|
|
RUN: lld-link -machine:amd64 -dll -noentry -out:test.dll chain-good.obj globals-good.obj
|
|
RUN: lld-link -machine:amd64 -dll -noentry -out:test.dll chain-good2.obj globals-good.obj
|
|
|
|
Chaining of anti-dependency symbols is not allowed.
|
|
|
|
RUN: not lld-link -machine:amd64 -dll -noentry -out:test.dll chain-bad.obj globals-bad.obj 2>&1 \
|
|
RUN: | FileCheck -check-prefix=ANTIDEP %s
|
|
RUN: not lld-link -machine:amd64 -dll -noentry -out:test.dll chain-bad2.obj globals-bad.obj 2>&1 \
|
|
RUN: | FileCheck -check-prefix=ANTIDEP %s
|
|
|
|
ANTIDEP: lld-link: error: undefined symbol: sym
|
|
ANTIDEP-NEXT: >>> referenced by chain-bad
|
|
|
|
#--- chain-bad.s
|
|
.weak_anti_dep sym
|
|
.set sym,sym2
|
|
.weak_anti_dep sym2
|
|
.set sym2,sym3
|
|
|
|
#--- chain-bad2.s
|
|
.weak_anti_dep sym2
|
|
.set sym2,sym3
|
|
.weak sym
|
|
.set sym,sym2
|
|
|
|
#--- globals-bad.s
|
|
.section .test,"r"
|
|
.global sym3
|
|
.set sym3,3
|
|
|
|
#--- chain-good.s
|
|
.weak_anti_dep sym
|
|
.set sym,sym2
|
|
.weak_anti_dep sym2
|
|
.set sym2,sym3
|
|
.weak_anti_dep sym3
|
|
.set sym3,sym4
|
|
.weak_anti_dep sym4
|
|
|
|
#--- chain-good2.s
|
|
.weak_anti_dep sym
|
|
.set sym,sym2
|
|
.weak_anti_dep sym2
|
|
.set sym2,sym3
|
|
.weak_anti_dep sym3
|
|
.set sym3,weak_sym
|
|
.weak weak_sym
|
|
.set weak_sym,sym4
|
|
.weak_anti_dep sym4
|
|
|
|
#--- globals-good.s
|
|
.section .test,"r"
|
|
.global sym2
|
|
.set sym2,2
|
|
.global sym4
|
|
.set sym4,4
|