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| author | Richard Henderson <rth@redhat.com> | 2004-07-09 19:24:27 -0700 |
|---|---|---|
| committer | Richard Henderson <rth@gcc.gnu.org> | 2004-07-09 19:24:27 -0700 |
| commit | 020510c955a775c8b9d1144ec0d16ca6a8efab9a (patch) | |
| tree | 51f4ee95f722240f3d4dc04e828383dded783010 | |
| parent | f3a096e85c5feacb2fe5e55bbcc607aa0545a0b7 (diff) | |
| download | gcc-020510c955a775c8b9d1144ec0d16ca6a8efab9a.zip gcc-020510c955a775c8b9d1144ec0d16ca6a8efab9a.tar.gz gcc-020510c955a775c8b9d1144ec0d16ca6a8efab9a.tar.bz2 | |
tree-ssa-ccp.c (ccp_fold_builtin): Strip conversion exprs with prejudice.
* tree-ssa-ccp.c (ccp_fold_builtin): Strip conversion exprs
with prejudice.
From-SVN: r84436
| -rw-r--r-- | gcc/ChangeLog | 3 | ||||
| -rw-r--r-- | gcc/tree-ssa-ccp.c | 11 |
2 files changed, 13 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 3fb67e7..47ada40 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -2,6 +2,9 @@ * builtins.c (expand_builtin_stpcpy): Don't modify len. + * tree-ssa-ccp.c (ccp_fold_builtin): Strip conversion exprs + with prejudice. + 2004-07-10 Kelley Cook <kcook@gcc.gnu.org> * flags.h: Delete redundant prototypes that are being generated diff --git a/gcc/tree-ssa-ccp.c b/gcc/tree-ssa-ccp.c index d2c503d..01da8f8 100644 --- a/gcc/tree-ssa-ccp.c +++ b/gcc/tree-ssa-ccp.c @@ -2405,7 +2405,16 @@ ccp_fold_builtin (tree stmt, tree fn) } if (result && ignore) - STRIP_NOPS (result); + { + /* STRIP_NOPS isn't strong enough -- it'll stop when we change modes, + but given that we're ignoring the result, we don't care what type + is being returned by the transformed function. */ + while (TREE_CODE (result) == NOP_EXPR + || TREE_CODE (result) == CONVERT_EXPR + || TREE_CODE (result) == NON_LVALUE_EXPR) + result = TREE_OPERAND (result, 0); + } + return result; } |