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| author | Tamar Christina <tamar.christina@arm.com> | 2016-08-18 08:45:53 +0000 |
|---|---|---|
| committer | James Greenhalgh <jgreenhalgh@gcc.gnu.org> | 2016-08-18 08:45:53 +0000 |
| commit | 65d21eaf7067d2e41210a74fde9db825274bad2d (patch) | |
| tree | 0637c859f01c8757efce3dee3adbb73f0c738ecb /gcc | |
| parent | eeead3a6f1c090dceb9c2b8f6a92855369702244 (diff) | |
| download | gcc-65d21eaf7067d2e41210a74fde9db825274bad2d.zip gcc-65d21eaf7067d2e41210a74fde9db825274bad2d.tar.gz gcc-65d21eaf7067d2e41210a74fde9db825274bad2d.tar.bz2 | |
[PATCH] [GCC] Don't use section anchors for declarations that don't fit in a single anchor range
On behalf of Tamar Christina <tamar.christina@arm.com>.
gcc/
* varasm.c (default_use_anchors_for_symbol_p): Reject too large decls.
Co-Authored-By: Ramana Radhakrishnan <ramana.radhakrishnan@arm.com>
From-SVN: r239561
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/varasm.c | 9 |
2 files changed, 14 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 17dab64..5d89dbb 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2016-08-18 Tamar Christina <tamar.christina@arm.com> + Ramana Radhakrishnan <ramana.radhakrishnan@arm.com> + + * varasm.c (default_use_anchors_for_symbol_p): Reject too large decls. + 2016-08-18 Richard Biener <rguenther@suse.de> * ssa-iterators.h (ssa_vuse_operand): New inline. diff --git a/gcc/varasm.c b/gcc/varasm.c index e747d2c..00a9b30 100644 --- a/gcc/varasm.c +++ b/gcc/varasm.c @@ -6793,6 +6793,15 @@ default_use_anchors_for_symbol_p (const_rtx symbol) sections that should be marked as small in the section directive. */ if (targetm.in_small_data_p (decl)) return false; + + /* Don't use section anchors for decls that won't fit inside a single + anchor range to reduce the amount of instructions require to refer + to the entire declaration. */ + if (decl && DECL_SIZE (decl) + && tree_to_shwi (DECL_SIZE (decl)) + >= (targetm.max_anchor_offset * BITS_PER_UNIT)) + return false; + } return true; } |