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4 Commits

Author SHA1 Message Date
Vasileios Kalintiris cfb005a0ee [mips] Do not allow -opt-bisect-limit to skip the PIC call optimization pass. 
r282428 added the MipsOptimizePICCall as an opt-in pass that can be
skipped when using the -opt-bisect-limit option. However, this pass is
needed because it generates code that conforms to the o32 ABI
specification by using the $t9 register for PIC calls with JALR
instructions.

This bug was exposed by the fact that skipFunction() also checks for
the "optnone" attribute. This caused functions with that attribute to
break the requirements of the o32 ABI.

llvm-svn: 285305
 2016-10-27 15:50:36 +00:00
Petar Jovanovic e578e970cb [mips] Make Static a default relocation model for MIPS codegen 
This change follows up defaults for GCC and Clang, so LLVM does not differ
from them. While number of the test files are touched with this change, they
all keep the old (expected) behaviour with the explicit option:
"-relocation-model=pic"
The tests that have not been touched are insensitive to relocation model.

Differential Revision: http://reviews.llvm.org/D17995

llvm-svn: 265949
 2016-04-11 15:24:23 +00:00
Akira Hatanaka 42a91ef2ac [mips] Fix test case. 
Indent the command lines to indicate they continue from previous lines. Also,
fix incorrect uses of CHECK-DAG and CHECK-NOT.

llvm-svn: 196636
 2013-12-07 02:48:29 +00:00
Akira Hatanaka 168d4e5b20 [mips] Implement the following optimizations using dominance information to 
make PIC calls a little more efficient:

1. Remove instructions setting up $gp if it is known that a function has been
   called at least once.
2. Save the address of a called function in a register instead of loading
   it from the GOT at every call site.

llvm-svn: 195892
 2013-11-27 23:38:42 +00:00