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authorJakub Jelinek <jakub@redhat.com>2019-12-11 00:49:40 +0100
committerJakub Jelinek <jakub@gcc.gnu.org>2019-12-11 00:49:40 +0100
commita6ae300f9a019aff902cd11068af0956288d6541 (patch)
tree56061a0b729a25704f7b772c0a4ad8652d33ceb2
parent7436a1c6750d1d45487f666da94808f5b06d5ffd (diff)
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re PR tree-optimization/92891 (ice in decompose, at wide-int.h:984)
PR tree-optimization/92891 * builtins.c (gimple_call_alloc_size): Convert size to sizetype before returning it. * gcc.c-torture/compile/pr92891.c: New test. From-SVN: r279205
-rw-r--r--gcc/ChangeLog6
-rw-r--r--gcc/builtins.c2
-rw-r--r--gcc/testsuite/ChangeLog5
-rw-r--r--gcc/testsuite/gcc.c-torture/compile/pr92891.c16
4 files changed, 28 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index c8ff694..fedf736 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2019-12-10 Jakub Jelinek <jakub@redhat.com>
+
+ PR tree-optimization/92891
+ * builtins.c (gimple_call_alloc_size): Convert size to sizetype
+ before returning it.
+
2019-12-10 Vladimir Makarov <vmakarov@redhat.com>
PR rtl-optimization/92796
diff --git a/gcc/builtins.c b/gcc/builtins.c
index 53de17c..205ac39 100644
--- a/gcc/builtins.c
+++ b/gcc/builtins.c
@@ -3755,7 +3755,7 @@ gimple_call_alloc_size (gimple *stmt)
return NULL_TREE;
if (argidx2 > nargs && TREE_CODE (size) == INTEGER_CST)
- return size;
+ return fold_convert (sizetype, size);
/* To handle ranges do the math in wide_int and return the product
of the upper bounds as a constant. Ignore anti-ranges. */
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 2ce9f6a..37de7de 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2019-12-10 Jakub Jelinek <jakub@redhat.com>
+
+ PR tree-optimization/92891
+ * gcc.c-torture/compile/pr92891.c: New test.
+
2019-12-10 Vladimir Makarov <vmakarov@redhat.com>
PR rtl-optimization/92796
diff --git a/gcc/testsuite/gcc.c-torture/compile/pr92891.c b/gcc/testsuite/gcc.c-torture/compile/pr92891.c
new file mode 100644
index 0000000..7490c90
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/compile/pr92891.c
@@ -0,0 +1,16 @@
+/* PR tree-optimization/92891 */
+
+int a, b;
+char *foo (int) __attribute__((alloc_size(1)));
+
+void
+bar (void)
+{
+ char *e = foo (2);
+ while (a)
+ {
+ if (b <= 0)
+ continue;
+ e[b] = 0;
+ }
+}