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17 Commits

Author SHA1 Message Date
Vlad Tsyrklevich
e5e6a64128 Revert "Reland [ELF] Loose a condition for relocation with a symbol"
This reverts commit r366686 as it appears to be causing buildbot
failures on sanitizer-x86_64-linux-android and sanitizer-x86_64-linux.

llvm-svn: 366708
2019-07-22 17:48:53 +00:00
Nikola Prica
c3d21d6ff5 Reland [ELF] Loose a condition for relocation with a symbol
This patch was not the reason of the buildbot failure.

Deleted code was introduced as a work around for a bug in the gold linker
(http://sourceware.org/PR16794). Test case that was given as a reason for
this part of code, the one on previous link, now works for the gold.
This condition is too strict and when a code is compiled with debug info
it forces generation of numerous relocations with symbol for architectures
that do not have relocation addend.

Reviewers: arsenm, espindola

Reviewed By: MaskRay

Differential Revision: https://reviews.llvm.org/D64327

llvm-svn: 366686
2019-07-22 13:07:01 +00:00
Nikola Prica
fd772afb31 Revert "[ELF] Loose a condition for relocation with a symbol"
This reverts commit 8507eca1647118e73435b0ce1de8a1952a021d01.

Reveting due to some suspicious failurse in santizer-x86_64-linux.

llvm-svn: 365685
2019-07-10 18:58:05 +00:00
Nikola Prica
5d3276d477 [ELF] Loose a condition for relocation with a symbol
Deleted code was introduced as a work around for a bug in the gold linker
(http://sourceware.org/PR16794). Test case that was given as a reason for
this part of code, the one on previous link, now works for the gold.
This condition is too strict and when a code is compiled with debug info
it forces generation of numerous relocations with symbol for architectures
that do not have relocation addend.

Reviewers: arsenm, espindola

Reviewed By: MaskRay

Differential Revision: https://reviews.llvm.org/D64327

llvm-svn: 365618
2019-07-10 11:17:48 +00:00
Francis Visoiu Mistrih
30264d4391 [CodeGen] Unify MBB reference format in both MIR and debug output
As part of the unification of the debug format and the MIR format, print
MBB references as '%bb.5'.

The MIR printer prints the IR name of a MBB only for block definitions.

* find . \( -name "*.mir" -o -name "*.cpp" -o -name "*.h" -o -name "*.ll" \) -type f -print0 | xargs -0 sed -i '' -E 's/BB#" << ([a-zA-Z0-9_]+)->getNumber\(\)/" << printMBBReference(*\1)/g'
* find . \( -name "*.mir" -o -name "*.cpp" -o -name "*.h" -o -name "*.ll" \) -type f -print0 | xargs -0 sed -i '' -E 's/BB#" << ([a-zA-Z0-9_]+)\.getNumber\(\)/" << printMBBReference(\1)/g'
* find . \( -name "*.txt" -o -name "*.s" -o -name "*.mir" -o -name "*.cpp" -o -name "*.h" -o -name "*.ll" \) -type f -print0 | xargs -0 sed -i '' -E 's/BB#([0-9]+)/%bb.\1/g'
* grep -nr 'BB#' and fix

Differential Revision: https://reviews.llvm.org/D40422

llvm-svn: 319665
2017-12-04 17:18:51 +00:00
Daniel Jasper
a174e575c4 Revert r240302 ("Bring r240130 back.").
This causes errors like:

  ld: error: blah.o: requires dynamic R_X86_64_PC32 reloc against '' which
  may overflow at runtime; recompile with -fPIC
  blah.cc:function f(): error: undefined reference to ''
  blah.o:g(): error: undefined reference to ''

I have not yet come up with an appropriate reproduction.

llvm-svn: 240394
2015-06-23 11:31:32 +00:00
Rafael Espindola
1bd232f704 Bring r240130 back.
Now that pr23900 is fixed, we can bring it back with no changes.

Original message:

Make all temporary symbols unnamed.

What this does is make all symbols that would otherwise start with a .L
(or L on MachO) unnamed.

Some of these symbols still show up in the symbol table, but we can just
make them unnamed.

In order to make sure we produce identical results when going thought assembly,
all .L (not just the compiler produced ones), are now unnamed.

Running llc on llvm-as.opt.bc, the peak memory usage goes from 208.24MB to
205.57MB.

llvm-svn: 240302
2015-06-22 17:52:52 +00:00
Nico Weber
cea0f30bb1 Revert 240130, it caused crashes (repro in PR23900).
llvm-svn: 240193
2015-06-19 23:43:47 +00:00
Rafael Espindola
41c3ae17be Make all temporary symbols unnamed.
What this does is make all symbols that would otherwise start with a .L
(or L on MachO) unnamed.

Some of these symbols still show up in the symbol table, but we can just
make them unnamed.

In order to make sure we produce identical results when going thought assembly,
all .L (not just the compiler produced ones), are now unnamed.

Running llc on llvm-as.opt.bc, the peak memory usage goes from 208.24MB to
205.57MB.

llvm-svn: 240130
2015-06-19 12:16:55 +00:00
Petar Jovanovic
9a0a08ccc4 Re-enable target-specific relocation table sorting and use it for Mips
Some targets (ie. Mips) have additional rules for ordering the relocation
table entries. Allow them to override generic sortRelocs(), which sorts
entries by Offset.
Then override this function for Mips, to emit HI16 and GOT16 relocations
against the local symbol in pair with the corresponding LO16 relocation.

Patch by Vladimir Stefanovic.

Differential Revision: http://reviews.llvm.org/D7414

llvm-svn: 234883
2015-04-14 13:23:34 +00:00
Rafael Espindola
e806144cb9 Don't relocate with sections if there might be a paired relocation.
llvm-svn: 205240
2014-03-31 19:00:23 +00:00
Rafael Espindola
6b27cf22b1 Now that this test is assembly, make the checks a bit stronger.
This will be used for a followup patch.

llvm-svn: 205232
2014-03-31 18:01:50 +00:00
Daniel Sanders
3b56d572bc [mips] Implement missing relocations in the integrated assembler.
%got_hi, %got_lo, %call_hi, %call_lo, %higher, and %highest are now recognised
by MipsAsmParser::getVariantKind().

To prevent future issues with missing entries in this StringSwitch, I've added
an assertion to the default case.

llvm-svn: 205200
2014-03-31 15:15:02 +00:00
Daniel Sanders
e21f979a37 [mips] Remove R_MIPS_GOT which isn't used and shares the same number as R_MIPS_GOT16
Unlike my previous commit, don't try to remove the corresponding VK_Mips_GOT yet
even though it shares the same assembly text since that is used.

llvm-svn: 205196
2014-03-31 14:47:41 +00:00
Daniel Sanders
22e21a2a24 Revert r205194 - [mips] Removed R_MIPS_GOT. It's identical to R_MIPS_GOT16.
There's a couple additional bits I missed.

llvm-svn: 205195
2014-03-31 14:34:36 +00:00
Daniel Sanders
293e334c2f [mips] Removed R_MIPS_GOT. It's identical to R_MIPS_GOT16.
llvm-svn: 205194
2014-03-31 14:30:05 +00:00
Rafael Espindola
c4c29b96ec Convert one last llc -filetype=obj test.
Unfortunately this one fails deep inside the mips backend, so xfail it.

llvm-svn: 205042
2014-03-28 19:58:24 +00:00