Commit Graph

5 Commits

Author SHA1 Message Date
Rafael Espindola
1de6f369b3 Diagnose undefined temporary symbols.
We already disallowed

.global .Lfoo

so this is reasonable.

This is a small cherry pick from r240130.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240681 91177308-0d34-0410-b5e6-96231b3b80d8
2015-06-25 20:10:45 +00:00
Daniel Jasper
b7f5b8b4b2 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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240394 91177308-0d34-0410-b5e6-96231b3b80d8
2015-06-23 11:31:32 +00:00
Rafael Espindola
afd779f72d 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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240302 91177308-0d34-0410-b5e6-96231b3b80d8
2015-06-22 17:52:52 +00:00
Nico Weber
7081f6fc99 Revert 240130, it caused crashes (repro in PR23900).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240193 91177308-0d34-0410-b5e6-96231b3b80d8
2015-06-19 23:43:47 +00:00
Rafael Espindola
ec77d9ad83 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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240130 91177308-0d34-0410-b5e6-96231b3b80d8
2015-06-19 12:16:55 +00:00