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author | Rong Xu <xur@google.com> | 2014-07-21 16:47:22 -0700 |
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committer | Rong Xu <xur@google.com> | 2014-07-29 15:31:03 -0700 |
commit | 38a8aecfb882072900434499696b5c32a2274515 (patch) | |
tree | 2aac97f0ae24b03cd98c1a06e989c031c173f889 /gcc-4.9/gcc/tree-vrp.c | |
parent | c231900e5dcc14d8296bd9f62b45997a49d4d5e7 (diff) | |
download | toolchain_gcc-38a8aecfb882072900434499696b5c32a2274515.tar.gz toolchain_gcc-38a8aecfb882072900434499696b5c32a2274515.tar.bz2 toolchain_gcc-38a8aecfb882072900434499696b5c32a2274515.zip |
[4.9] Switch gcc-4.9 to use google/gcc-4_9 branch.
This source drop uses svn version r212828 of google/gcc-4.9 branch.
We also cherry-picked r213062, r213063 and r213064 to fix windows
build issues.
All gcc-4.9 patches before July 3rd are ported to google/gcc-4.9.
The following prior commits has not been merged to google branch yet.
(They are included in this commit).
e7af147f979e657fe2df00808e5b4319b0e088c6,
baf87df3cb2683649ba7e9872362a7e721117c23, and
c231900e5dcc14d8296bd9f62b45997a49d4d5e7.
Change-Id: I4bea3ea470387ff751c2be4cb0d4a12059b9299b
Diffstat (limited to 'gcc-4.9/gcc/tree-vrp.c')
-rw-r--r-- | gcc-4.9/gcc/tree-vrp.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/gcc-4.9/gcc/tree-vrp.c b/gcc-4.9/gcc/tree-vrp.c index 14f1526fa..2c80135f9 100644 --- a/gcc-4.9/gcc/tree-vrp.c +++ b/gcc-4.9/gcc/tree-vrp.c @@ -3616,15 +3616,18 @@ extract_range_basic (value_range_t *vr, gimple stmt) /* If arg is non-zero, then ffs or popcount are non-zero. */ if (((vr0->type == VR_RANGE - && integer_nonzerop (vr0->min)) + && range_includes_zero_p (vr0->min, vr0->max) == 0) || (vr0->type == VR_ANTI_RANGE - && integer_zerop (vr0->min))) - && !is_overflow_infinity (vr0->min)) + && range_includes_zero_p (vr0->min, vr0->max) == 1)) + && !is_overflow_infinity (vr0->min) + && !is_overflow_infinity (vr0->max)) mini = 1; /* If some high bits are known to be zero, we can decrease the maximum. */ if (vr0->type == VR_RANGE && TREE_CODE (vr0->max) == INTEGER_CST + && !operand_less_p (vr0->min, + build_zero_cst (TREE_TYPE (vr0->min))) && !is_overflow_infinity (vr0->max)) maxi = tree_floor_log2 (vr0->max) + 1; } @@ -6661,8 +6664,9 @@ remove_range_assertions (void) } else { + if (!is_gimple_debug (gsi_stmt (si))) + is_unreachable = 0; gsi_next (&si); - is_unreachable = 0; } } } |