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9 Commits

Author SHA1 Message Date
Gulfem Savrun Yeniceri
e5a8af7a90 [Passes] Fix relative lookup table converter pass 
This patch fixes the relative table converter pass for the lookup table
accesses that are resulted in an instruction sequence, where gep is not
immediately followed by a load, such as gep being hoisted outside the loop
or another instruction is inserted in between them. The fix inserts the
call to load.relative.instrinsic in the original place of load instead of gep.
Issue is reported by FreeBSD via https://bugs.freebsd.org/259921.

Differential Revision: https://reviews.llvm.org/D115571
 2021-12-12 04:40:17 +00:00
Kazu Hirata
abca4c012f [Utils] Use make_early_inc_range (NFC) 2021-09-13 08:57:23 -07:00
Gulfem Savrun Yeniceri
e96df3e531 [Passes] Add relative lookup table converter pass 
Lookup tables generate non PIC-friendly code, which requires dynamic relocation as described in:
https://bugs.llvm.org/show_bug.cgi?id=45244

This patch adds a new pass that converts lookup tables to relative lookup tables to make them PIC-friendly.

Differential Revision: https://reviews.llvm.org/D94355
 2021-04-13 01:29:41 +00:00
Krasimir Georgiev
c51e91e046 Revert "[Passes] Add relative lookup table converter pass" 
This reverts commit 5178ffc7cf92527557ae16e86d0fa90d538c2a19.

Compiling `llvm-profdata` with a compiler build from this produces a
crashing binary.
 2021-03-30 14:13:37 +02:00
Gulfem Savrun Yeniceri
5178ffc7cf [Passes] Add relative lookup table converter pass 
Lookup tables generate non PIC-friendly code, which requires dynamic relocation as described in:
https://bugs.llvm.org/show_bug.cgi?id=45244

This patch adds a new pass that converts lookup tables to relative lookup tables to make them PIC-friendly.

Differential Revision: https://reviews.llvm.org/D94355
 2021-03-29 21:53:32 +00:00
Gulfem Savrun Yeniceri
5fbe1fdf17 Revert "[Passes] Add relative lookup table converter pass" 
This reverts commit 5fd001a5ffbad403053c4a06bf4b2b76dc52bba8
because it broke clang-with-thin-lto-ubuntu bot.
 2021-03-24 18:59:33 +00:00
Gulfem Savrun Yeniceri
5fd001a5ff [Passes] Add relative lookup table converter pass 
Lookup tables generate non PIC-friendly code, which requires dynamic relocation as described in:
https://bugs.llvm.org/show_bug.cgi?id=45244

This patch adds a new pass that converts lookup tables to relative lookup tables to make them PIC-friendly.

Differential Revision: https://reviews.llvm.org/D94355
 2021-03-24 17:31:18 +00:00
Gulfem Savrun Yeniceri
e3a6d70c68 Revert "[Passes] Add relative lookup table converter pass" 
This reverts commit 78a65cd945d006ff02f9d24d9cc20a302ed93b08 which
caused buildbot failures.
 2021-03-23 00:43:16 +00:00
Gulfem Savrun Yeniceri
78a65cd945 [Passes] Add relative lookup table converter pass 
Lookup tables generate non PIC-friendly code, which requires dynamic relocation as described in:
https://bugs.llvm.org/show_bug.cgi?id=45244

This patch adds a new pass that converts lookup tables to relative lookup tables to make them PIC-friendly.

Differential Revision: https://reviews.llvm.org/D94355
 2021-03-22 22:09:02 +00:00