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| author | Richard Guenther <rguenther@suse.de> | 2011-05-18 10:36:45 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2011-05-18 10:36:45 +0000 |
| commit | 51c213f79189dd3527d1f66137c57bc4e68ec2d1 (patch) | |
| tree | d9ef4a82dfd135eec5040536e17c442f8e9077e8 /gcc/tree-ssa.c | |
| parent | 8f5e543422f5d052c6097e4283e21307445bf7ba (diff) | |
| download | gcc-51c213f79189dd3527d1f66137c57bc4e68ec2d1.zip gcc-51c213f79189dd3527d1f66137c57bc4e68ec2d1.tar.gz gcc-51c213f79189dd3527d1f66137c57bc4e68ec2d1.tar.bz2 | |
re PR middle-end/48989 (FAIL: gfortran.dg/lto/pr46036 f_lto_pr46036_0.o assemble)
2011-05-18 Richard Guenther <rguenther@suse.de>
PR middle-end/48989
* tree-cfg.c (verify_gimple_assign_unary): Adjust TRUTH op
operand verification.
(verify_gimple_assign_binary): Likewise.
* tree-ssa.c (useless_type_conversion_p): Preserve conversions
to non-1-precision BOOLEAN_TYPEs.
From-SVN: r173854
Diffstat (limited to 'gcc/tree-ssa.c')
| -rw-r--r-- | gcc/tree-ssa.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/gcc/tree-ssa.c b/gcc/tree-ssa.c index ba5a20b..f0bbf3b 100644 --- a/gcc/tree-ssa.c +++ b/gcc/tree-ssa.c @@ -1306,6 +1306,13 @@ useless_type_conversion_p (tree outer_type, tree inner_type) || TYPE_PRECISION (inner_type) != TYPE_PRECISION (outer_type)) return false; + /* Preserve conversions to BOOLEAN_TYPE if it is not of precision + one. */ + if (TREE_CODE (inner_type) != BOOLEAN_TYPE + && TREE_CODE (outer_type) == BOOLEAN_TYPE + && TYPE_PRECISION (outer_type) != 1) + return false; + /* We don't need to preserve changes in the types minimum or maximum value in general as these do not generate code unless the types precisions are different. */ |