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commit 6e0c8795a1265d99f53d2e0165e88f42742cb533
Author: doko <doko at 6ca36cf4-e1d1-0310-8c6f-e303bb2178ca>
Date: Thu Nov 24 14:43:08 2016 +0000
* Fix PR middle-end/78501, proposed patch.
git-svn-id: svn+ssh://svn.debian.org/svn/gcccvs/branches/sid/gcc-7@9137 6ca36cf4-e1d1-0310-8c6f-e303bb2178ca
---
debian/changelog | 7 ++++---
debian/patches/pr78501.diff | 34 ++++++++++++++++++++++++++++++++++
debian/rules.patch | 1 +
3 files changed, 39 insertions(+), 3 deletions(-)
diff --git a/debian/changelog b/debian/changelog
index f75a583..5a06ce1 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,6 +1,6 @@
-gcc-7 (7-20161117-1) UNRELEASED; urgency=medium
+gcc-7 (7-20161124-1) UNRELEASED; urgency=medium
- * GCC 7 snapshot build, taken from the trunk 20161117.
+ * GCC 7 snapshot build, taken from the trunk 20161124.
[ Matthias Klose ]
* Update libgphobos symbol files.
@@ -11,12 +11,13 @@ gcc-7 (7-20161117-1) UNRELEASED; urgency=medium
* Add pkg-config to the build dependencies.
* Drop the work around for PR libstdc++/65913.
* gdc: Link with the shared libgphobos runtime by default.
+ * Fix PR middle-end/78501, proposed patch.
[ YunQiang Su ]
* Update gnat patches for GCC 7, stop building libgnatvsn and libgnatprj.
Addresses: #844367.
- -- Matthias Klose <doko at debian.org> Thu, 17 Nov 2016 13:58:09 +0100
+ -- Matthias Klose <doko at debian.org> Thu, 24 Nov 2016 15:42:23 +0100
gcc-7 (7-20161116-1) experimental; urgency=medium
diff --git a/debian/patches/pr78501.diff b/debian/patches/pr78501.diff
new file mode 100644
index 0000000..77fb61b
--- /dev/null
+++ b/debian/patches/pr78501.diff
@@ -0,0 +1,34 @@
+# DP: Proposed patch for PR middle-end/78501
+
+--- a/src/gcc/tree-vrp.c
++++ b/src/gcc/tree-vrp.c
+@@ -4028,15 +4028,20 @@ extract_range_basic (value_range *vr, gimple *stmt)
+ }
+ return;
+ case CFN_BUILT_IN_STRLEN:
+- {
+- tree type = TREE_TYPE (gimple_call_lhs (stmt));
+- tree max = vrp_val_max (ptrdiff_type_node);
+- wide_int wmax = wi::to_wide (max, TYPE_PRECISION (TREE_TYPE (max)));
+- tree range_min = build_zero_cst (type);
+- tree range_max = wide_int_to_tree (type, wmax - 1);
+- set_value_range (vr, VR_RANGE, range_min, range_max, NULL);
+- }
+- return;
++ if (tree lhs = gimple_call_lhs (stmt))
++ if (ptrdiff_type_node
++ && (TYPE_PRECISION (ptrdiff_type_node)
++ == TYPE_PRECISION (TREE_TYPE (lhs))))
++ {
++ tree type = TREE_TYPE (lhs);
++ tree max = vrp_val_max (ptrdiff_type_node);
++ wide_int wmax = wi::to_wide (max, TYPE_PRECISION (TREE_TYPE (max)));
++ tree range_min = build_zero_cst (type);
++ tree range_max = wide_int_to_tree (type, wmax - 1);
++ set_value_range (vr, VR_RANGE, range_min, range_max, NULL);
++ return;
++ }
++ break;
+ default:
+ break;
+ }
diff --git a/debian/rules.patch b/debian/rules.patch
index b062dd4..8677613 100644
--- a/debian/rules.patch
+++ b/debian/rules.patch
@@ -225,6 +225,7 @@ debian_patches += gcc-ice-apport
debian_patches += skip-bootstrap-multilib
debian_patches += libffi-ro-eh_frame_sect
debian_patches += libffi-mips
+debian_patches += pr78501
# sigaction on sparc changed between glibc 2.19 and 2.21
ifeq (,$(filter 2.1%, $(shell dpkg-query -l libc-bin | awk '/^.i/ {print $$3}')))
--
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