| Message ID | 788a88b5-4e57-d910-3824-f89f6883f929@linaro.org |
|---|---|
| State | New |
| Headers | show |
On Sat, Oct 8, 2016 at 9:34 PM, kugan <kugan.vivekanandarajah@linaro.org> wrote: > Hi, > > In vrp_intersect_ranges_1, when !vr0->equiv, we are copying vr1->equiv > without allocating bitmap. This patch fixes this. > > Bootstrap and regression testing are ongoing. Is this OK if no new > regressions? Ok for trunk and branches. Richard. > Thanks, > Kugan > > gcc/ChangeLog: > > 2016-10-09 Kugan Vivekanandarajah <kuganv@linaro.org> > > * tree-vrp.c (vrp_intersect_ranges_1): Allocate bitmap before > copying.
From ccd2fcb909f54f85858f18652abc3a387321f9a1 Mon Sep 17 00:00:00 2001 From: Kugan Vivekanandarajah <kugan.vivekanandarajah@linaro.org> Date: Sat, 8 Oct 2016 20:23:28 +1100 Subject: [PATCH 2/7] Alloc bitmap --- gcc/tree-vrp.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/gcc/tree-vrp.c b/gcc/tree-vrp.c index 46bbd82..e758ae4 100644 --- a/gcc/tree-vrp.c +++ b/gcc/tree-vrp.c @@ -8622,7 +8622,10 @@ vrp_intersect_ranges_1 (value_range *vr0, value_range *vr1) if (vr0->equiv && vr1->equiv && vr0->equiv != vr1->equiv) bitmap_ior_into (vr0->equiv, vr1->equiv); else if (vr1->equiv && !vr0->equiv) - bitmap_copy (vr0->equiv, vr1->equiv); + { + vr0->equiv = BITMAP_ALLOC (&vrp_equiv_obstack); + bitmap_copy (vr0->equiv, vr1->equiv); + } } void -- 2.7.4