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6 Commits

Author SHA1 Message Date
Fangrui Song
067aab1d40 Move REQUIRES: line to the top 
llvm-svn: 335635
 2018-06-26 17:44:23 +00:00
Saleem Abdulrasool
2c8aa993b7 test: add an additional cfi_return_column test 
Ensure that we still coalesce identical CIEs across FDEs even with
cfi_return_column alterations.

llvm-svn: 309525
 2017-07-30 21:30:54 +00:00
Saleem Abdulrasool
bb6a582495 test: make the test clearer (NFC) 
Use `llvm-objdump -dwarf=frames` to dump the .eh_frame to validate the
output textually rather than compare the binary output.  This makes it
easier to see what is being checked.  NFC.

llvm-svn: 309524
 2017-07-30 21:30:53 +00:00
Saleem Abdulrasool
726b68ccd7 MC: account for the return column in the CIE key 
If the return column is different, we cannot coalesce the CIE across the
FDEs.  Add that to the key calculation.  This ensures that we emit a
separate CIE.

llvm-svn: 309492
 2017-07-29 20:03:00 +00:00
Saleem Abdulrasool
15bf3273dc test: require x86 backend 
Ensure that the target is registered before using it.  Should fix the
hexagon Bots.

llvm-svn: 309363
 2017-07-28 04:15:35 +00:00
Saleem Abdulrasool
e5f08e5254 MC: add support for cfi_return_column 
This adds support for the CFI pseudo-op return_column.  This specifies
the frame table column which contains the return address.

Addresses PR33953!

llvm-svn: 309360
 2017-07-28 03:39:19 +00:00