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| author | Richard Guenther <rguenther@suse.de> | 2009-04-15 14:17:35 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2009-04-15 14:17:35 +0000 |
| commit | 25e20805c0689319973ce9a5201cd0c3e149c9e2 (patch) | |
| tree | 087c4f2644cab7d2d923ed965d1fe4f1785ddd09 /gcc | |
| parent | 90cc3676552866af3edcad820ca5ca60744e2666 (diff) | |
| download | gcc-25e20805c0689319973ce9a5201cd0c3e149c9e2.zip gcc-25e20805c0689319973ce9a5201cd0c3e149c9e2.tar.gz gcc-25e20805c0689319973ce9a5201cd0c3e149c9e2.tar.bz2 | |
re PR tree-optimization/39764 (ICE in set_lattice_value, at tree-ssa-ccp.c:468 with -ffinite-math-only)
2009-04-15 Richard Guenther <rguenther@suse.de>
PR tree-optimization/39764
* tree-ssa-ccp.c (get_value): Canonicalize value with
canonicalize_float_value.
* g++.dg/torture/pr39764.C: New testcase.
From-SVN: r146120
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/g++.dg/torture/pr39764.C | 14 | ||||
| -rw-r--r-- | gcc/tree-ssa-ccp.c | 4 |
4 files changed, 29 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 80f9094..6ba81d2 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2009-04-15 Richard Guenther <rguenther@suse.de> + + PR tree-optimization/39764 + * tree-ssa-ccp.c (get_value): Canonicalize value with + canonicalize_float_value. + 2009-04-15 Jan Hubicka <jh@suse.cz> * builtins.def (va_start, va_end, va_copy): Fix my previous commit. diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index a6e9bf7..f1a02b0 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2009-04-15 Richard Guenther <rguenther@suse.de> + + PR tree-optimization/39764 + * g++.dg/torture/pr39764.C: New testcase. + 2009-04-15 Nathan Sidwell <nathan@codesourcery.com> * g++.dg/ext/altivec-17.C: New. diff --git a/gcc/testsuite/g++.dg/torture/pr39764.C b/gcc/testsuite/g++.dg/torture/pr39764.C new file mode 100644 index 0000000..a890133 --- /dev/null +++ b/gcc/testsuite/g++.dg/torture/pr39764.C @@ -0,0 +1,14 @@ +/* { dg-do compile } */ + +class A; +class B { }; +extern const double NaN; +B foo(A* exec, double d); +inline B baz(A* a) { + return foo(a, NaN); +} +B bar(A* a) { + return baz(a); +} +extern const double NaN = (__builtin_nanf("")); + diff --git a/gcc/tree-ssa-ccp.c b/gcc/tree-ssa-ccp.c index 226fd3d..b9b52cd 100644 --- a/gcc/tree-ssa-ccp.c +++ b/gcc/tree-ssa-ccp.c @@ -228,6 +228,8 @@ typedef enum doing the store). */ static prop_value_t *const_val; +static void canonicalize_float_value (prop_value_t *); + /* Dump constant propagation value VAL to file OUTF prefixed by PREFIX. */ static void @@ -387,6 +389,8 @@ get_value (tree var) if (val->lattice_val == UNINITIALIZED) *val = get_default_value (var); + canonicalize_float_value (val); + return val; } |