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| author | Richard Biener <rguenther@suse.de> | 2014-06-24 10:35:30 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2014-06-24 10:35:30 +0000 |
| commit | 997532771156fcc29ded5fba7f5c7ec579311f45 (patch) | |
| tree | 2567eb04a5099a006aa633fc8767f2961440a5c1 /gcc/tree-ssa-sink.c | |
| parent | 56ad0e3820fa6f21e603e83c6e0908d39915463a (diff) | |
| download | gcc-997532771156fcc29ded5fba7f5c7ec579311f45.zip gcc-997532771156fcc29ded5fba7f5c7ec579311f45.tar.gz gcc-997532771156fcc29ded5fba7f5c7ec579311f45.tar.bz2 | |
re PR tree-optimization/61572 (ICE: in assign_by_spills, at lra-assigns.c:1335)
2014-06-24 Richard Biener <rguenther@suse.de>
PR tree-optimization/61572
* tree-ssa-sink.c (statement_sink_location): Do not sink
loads from hard registers.
* gcc.target/i386/pr61572.c: New testcase.
From-SVN: r211933
Diffstat (limited to 'gcc/tree-ssa-sink.c')
| -rw-r--r-- | gcc/tree-ssa-sink.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/gcc/tree-ssa-sink.c b/gcc/tree-ssa-sink.c index f7485ef..fb7310d 100644 --- a/gcc/tree-ssa-sink.c +++ b/gcc/tree-ssa-sink.c @@ -374,6 +374,12 @@ statement_sink_location (gimple stmt, basic_block frombb, nearest to commondom. */ if (gimple_vuse (stmt)) { + /* Do not sink loads from hard registers. */ + if (gimple_assign_single_p (stmt) + && TREE_CODE (gimple_assign_rhs1 (stmt)) == VAR_DECL + && DECL_HARD_REGISTER (gimple_assign_rhs1 (stmt))) + return false; + imm_use_iterator imm_iter; use_operand_p use_p; basic_block found = NULL; |