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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 5178ffc7cf.

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 5fd001a5ff
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 78a65cd945 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