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| author | diggerlin <digger.llvm@gmail.com> | 2020-06-09 16:15:06 -0400 |
|---|---|---|
| committer | diggerlin <digger.llvm@gmail.com> | 2020-06-09 16:15:06 -0400 |
| commit | edd819c7576b5183f0d9ef90c48bf903e22035d0 (patch) | |
| tree | 9b17295b08570fb627e9db72078c9c98236cbbef /llvm/lib/Bitcode/Reader/BitcodeReader.cpp | |
| parent | e6d94f4bd210f01a6dedf3cdd9ac331815cc7874 (diff) | |
[AIX] supporting the visibility attribute for aix assembly
SUMMARY:
in the aix assembly , it do not have .hidden and .protected directive.
in current llvm. if a function or a variable which has visibility attribute, it will generate something like the .hidden or .protected , it can not recognize by aix as.
in aix assembly, the visibility attribute are support in the pseudo-op like
.extern Name [ , Visibility ]
.globl Name [, Visibility ]
.weak Name [, Visibility ]
in this patch, we implement the visibility attribute for the global variable, function or extern function .
for example.
extern __attribute__ ((visibility ("hidden"))) int
bar(int* ip);
__attribute__ ((visibility ("hidden"))) int b = 0;
__attribute__ ((visibility ("hidden"))) int
foo(int* ip){
return (*ip)++;
}
the visibility of .comm linkage do not support , we will have a separate patch for it.
we have the unsupported cases ("default" and "internal") , we will implement them in a a separate patch for it.
Reviewers: Jason Liu ,hubert.reinterpretcast,James Henderson
Differential Revision: https://reviews.llvm.org/D75866
Diffstat (limited to 'llvm/lib/Bitcode/Reader/BitcodeReader.cpp')
0 files changed, 0 insertions, 0 deletions