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| author | Tim Northover <tnorthover@apple.com> | 2017-03-09 21:12:06 +0000 |
|---|---|---|
| committer | Tim Northover <tnorthover@apple.com> | 2017-03-09 21:12:06 +0000 |
| commit | 7a9ea8f628f863c2cde41e63be45a2e47fbd95ef (patch) | |
| tree | 352006c08d3894ee9c6e38b6a68d3710c6cc3831 /clang/lib/Frontend/CompilerInvocation.cpp | |
| parent | 7e56366204287a513420a2633daa1f92b009f4bf (diff) | |
| download | llvm-7a9ea8f628f863c2cde41e63be45a2e47fbd95ef.zip llvm-7a9ea8f628f863c2cde41e63be45a2e47fbd95ef.tar.gz llvm-7a9ea8f628f863c2cde41e63be45a2e47fbd95ef.tar.bz2 | |
GlobalISel: put debug info for static allocas in the MachineFunction.
The good reason to do this is that static allocas are pretty simple to handle
(especially at -O0) and avoiding tracking DBG_VALUEs throughout the pipeline
should give some kind of performance benefit.
The bad reason is that the debug pipeline is an unholy mess of implicit
contracts, where determining whether "DBG_VALUE %reg, imm" actually implies a
load or not involves the services of at least 3 soothsayers and the sacrifice
of at least one chicken. And it still gets it wrong if the variable is at SP
directly.
llvm-svn: 297410
Diffstat (limited to 'clang/lib/Frontend/CompilerInvocation.cpp')
0 files changed, 0 insertions, 0 deletions