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| author | jakub <jakub@138bc75d-0d04-0410-961f-82ee72b054a4> | 2013-07-06 09:34:17 +0000 |
|---|---|---|
| committer | jakub <jakub@138bc75d-0d04-0410-961f-82ee72b054a4> | 2013-07-06 09:34:17 +0000 |
| commit | 64b5be0883c8383bb6824282fd1c9d76e41be64f (patch) | |
| tree | 5c06ed10d38755e166140f77dd83928e972b3462 /gcc/fold-const.c | |
| parent | 265fadd8490ab3ba95ed8c71b40262c8fa22ffff (diff) | |
| download | gcc-64b5be0883c8383bb6824282fd1c9d76e41be64f.tar.gz | |
PR target/29776
* fold-const.c (tree_call_nonnegative_warnv_p): Return true
for BUILT_IN_C{LZ,LRSB}*.
* tree.h (CASE_INT_FN): Add FN##IMAX case.
* tree-vrp.c (extract_range_basic): Handle
BUILT_IN_{FFS,PARITY,POPCOUNT,C{LZ,TZ,LRSB}}*. For
BUILT_IN_CONSTANT_P if argument isn't (D) of PARM_DECL,
fall thru to code calling set_value*.
* builtins.c (expand_builtin): Remove *IMAX cases.
(fold_builtin_bitop): For BUILT_IN_CLRSB* return NULL_TREE
if width is bigger than 2*HWI.
* libgcc2.c (__floattisf): Avoid undefined signed overflow.
* gcc.dg/tree-ssa/vrp89.c: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@200731 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/fold-const.c')
| -rw-r--r-- | gcc/fold-const.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/gcc/fold-const.c b/gcc/fold-const.c index a8e5f43faf4..6506ae7bbfb 100644 --- a/gcc/fold-const.c +++ b/gcc/fold-const.c @@ -15606,6 +15606,8 @@ tree_call_nonnegative_warnv_p (tree type, tree fndecl, CASE_INT_FN (BUILT_IN_FFS): CASE_INT_FN (BUILT_IN_PARITY): CASE_INT_FN (BUILT_IN_POPCOUNT): + CASE_INT_FN (BUILT_IN_CLZ): + CASE_INT_FN (BUILT_IN_CLRSB): case BUILT_IN_BSWAP32: case BUILT_IN_BSWAP64: /* Always true. */ |