diff options
| -rw-r--r-- | gcc/ChangeLog | 7 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.c-torture/compile/pr32169.c | 17 | ||||
| -rw-r--r-- | gcc/tree-vrp.c | 2 |
4 files changed, 31 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 2154665..dbb2447 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,10 @@ +2007-06-09 Ian Lance Taylor <iant@google.com> + + PR tree-optimization/32169 + * tree-vrp.c (extract_range_from_unary_expr): For NOP_EXPR and + CONVERT_EXPR, check whether min and max both converted to an + overflow infinity representation. + 2007-06-08 Eric Botcazou <ebotcazou@adacore.com> * reload1.c (fixup_abnormal_edges): Clear bb field for insns diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 14f7baf..bc45908 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2007-06-09 Ian Lance Taylor <iant@google.com> + + PR tree-optimization/32169 + * gcc.c-torture/compile/pr32169.c: New test. + 2007-06-08 Harsha Jagasia <harsha.jagasia@amd.com> * gcc.dg/vect/costmodel: New directory. diff --git a/gcc/testsuite/gcc.c-torture/compile/pr32169.c b/gcc/testsuite/gcc.c-torture/compile/pr32169.c new file mode 100644 index 0000000..29d3022 --- /dev/null +++ b/gcc/testsuite/gcc.c-torture/compile/pr32169.c @@ -0,0 +1,17 @@ +void f(char); +static inline +void * __memset_generic(char c) +{ + f(c); +} +int prepare_startup_playback_urb( + int b, + int c +) +{ + char d; + if (b) + __memset_generic(c == ( 1) ? 0x80 : 0); + else + __memset_generic (c == ( 1) ? 0x80 : 0); +} diff --git a/gcc/tree-vrp.c b/gcc/tree-vrp.c index 7506092..2a51de7 100644 --- a/gcc/tree-vrp.c +++ b/gcc/tree-vrp.c @@ -2208,6 +2208,8 @@ extract_range_from_unary_expr (value_range_t *vr, tree expr) && is_gimple_val (new_max) && tree_int_cst_equal (new_min, orig_min) && tree_int_cst_equal (new_max, orig_max) + && (!is_overflow_infinity (new_min) + || !is_overflow_infinity (new_max)) && (cmp = compare_values (new_min, new_max)) <= 0 && cmp >= -1) { |