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llvm-project/llvm/test/CodeGen/X86/2007-09-06-ExtWeakAliasee.ll

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Add a triple and switch test to FileCheck. On windows we don't print .weak for function definitions, so count was only finding 1 'weak'. llvm-svn: 194713
2013-11-15 01:12:32 +08:00
; RUN: llc < %s -mtriple=i686-pc-linux-gnu | FileCheck %s
[opaque pointer type] Add textual IR support for explicit type parameter for global aliases update.py: import fileinput import sys import re alias_match_prefix = r"(.*(?:=|:|^)\s*(?:external |)(?:(?:private|internal|linkonce|linkonce_odr|weak|weak_odr|common|appending|extern_weak|available_externally) )?(?:default |hidden |protected )?(?:dllimport |dllexport )?(?:unnamed_addr |)(?:thread_local(?:\([a-z]*\))? )?alias" plain = re.compile(alias_match_prefix + r" (.*?))(| addrspace\(\d+\) *)\*($| *(?:%|@|null|undef|blockaddress|addrspacecast|\[\[[a-zA-Z]|\{\{).*$)") cast = re.compile(alias_match_prefix + r") ((?:bitcast|inttoptr|addrspacecast)\s*\(.* to (.*?)(| addrspace\(\d+\) *)\*\)\s*(?:;.*)?$)") gep = re.compile(alias_match_prefix + r") ((?:getelementptr)\s*(?:inbounds)?\s*\((?P<type>.*), (?P=type)(?:\s*addrspace\(\d+\)\s*)?\* .*\)\s*(?:;.*)?$)") def conv(line): m = re.match(cast, line) if m: return m.group(1) + " " + m.group(3) + ", " + m.group(2) m = re.match(gep, line) if m: return m.group(1) + " " + m.group(3) + ", " + m.group(2) m = re.match(plain, line) if m: return m.group(1) + ", " + m.group(2) + m.group(3) + "*" + m.group(4) + "\n" return line for line in sys.stdin: sys.stdout.write(conv(line)) apply.sh: for name in "$@" do python3 `dirname "$0"`/update.py < "$name" > "$name.tmp" && mv "$name.tmp" "$name" rm -f "$name.tmp" done The actual commands: From llvm/src: find test/ -name *.ll | xargs ./apply.sh From llvm/src/tools/clang: find test/ -name *.mm -o -name *.m -o -name *.cpp -o -name *.c | xargs -I '{}' ../../apply.sh "{}" From llvm/src/tools/polly: find test/ -name *.ll | xargs ./apply.sh llvm-svn: 247378
2015-09-11 11:22:04 +08:00
@__gthrw_pthread_once = weak alias i32 (i32*, void ()*), i32 (i32*, void ()*)* @pthread_once ; <i32 (i32*, void ()*)*> [#uses=0]
Proper handle case, when aliasee is external weak symbol referenced only by alias itself. Also, fix a case, when target doesn't have weak symbols supported. llvm-svn: 41746
2007-09-07 01:21:48 +08:00
Error if we see an alias to a declaration. In ELF and COFF an alias is just another offset in a section. There is no way to represent an alias to something in another file. In MachO, the spec has the N_INDR type which should allow for exactly that, but is not currently implemented. Given that it is specified but not implemented, we error in codegen to avoid miscompiling but don't reject aliases to declarations in the verifier to leave the option open of implementing it. In the past we have used alias to declarations as a way of implementing weakref, which is why it exists in some old tests which this patch updates. llvm-svn: 194705
2013-11-14 21:58:06 +08:00
define weak i32 @pthread_once(i32*, void ()*) {
ret i32 0
}
Add a triple and switch test to FileCheck. On windows we don't print .weak for function definitions, so count was only finding 1 'weak'. llvm-svn: 194713
2013-11-15 01:12:32 +08:00
; CHECK: .weak pthread_once
; CHECK: pthread_once:
; CHECK: .weak __gthrw_pthread_once
; CHECK: __gthrw_pthread_once = pthread_once