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authorJerry DeLisle <jvdelisle@gcc.gnu.org>2025-09-02 15:58:26 -0700
committerJerry DeLisle <jvdelisle@gcc.gnu.org>2025-09-02 15:58:26 -0700
commit071b4126c613881f4cb25b4e5c39032964827f88 (patch)
tree7ed805786566918630d1d617b1ed8f7310f5fd8e /gcc/testsuite/gcc.dg/pr109071_2.c
parent845d23f3ea08ba873197c275a8857eee7edad996 (diff)
parentcaa1c2f42691d68af4d894a5c3e700ecd2dba080 (diff)
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Merge branch 'master' into gfortran-testdevel/gfortran-test
Diffstat (limited to 'gcc/testsuite/gcc.dg/pr109071_2.c')
-rw-r--r--gcc/testsuite/gcc.dg/pr109071_2.c50
1 files changed, 50 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/pr109071_2.c b/gcc/testsuite/gcc.dg/pr109071_2.c
new file mode 100644
index 0000000..549a8c4
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pr109071_2.c
@@ -0,0 +1,50 @@
+/* PR tree-optimization/109071 need more context for -Warray-bounds warnings
+ due to code duplication from jump threading.
+ test case is from PR85788, which is a duplication of PR109071. */
+/* { dg-options "-O2 -Warray-bounds -fdiagnostics-show-context=1" } */
+/* { dg-additional-options "-fdiagnostics-show-line-numbers -fdiagnostics-path-format=inline-events -fdiagnostics-show-caret" } */
+/* { dg-enable-nn-line-numbers "" } */
+int b=10;
+int *d = &b, *e;
+void a(void *k, long l) {
+ long f = __builtin_object_size(k, 0);
+ __builtin___memset_chk(k, b, l, f); /* { dg-warning "is out of the bounds" } */
+}
+typedef struct {
+ int g;
+ int h;
+ char i[8000 * 8];
+} j;
+static void make_str_raster(j *k) {
+ int *c = d;
+ for (; c; c = e)
+ k->g = k->h = 32767;
+
+ a(k->i, k->g / 8 * k->h);
+ for (; d;)
+ ;
+}
+j m;
+void n() { make_str_raster(&m); }
+/* { dg-begin-multiline-output "" }
+ NN | __builtin___memset_chk(k, b, l, f);
+ | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ 'n': events 1-2
+ NN | __builtin___memset_chk(k, b, l, f);
+ | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ | |
+ | (2) warning happens here
+......
+ { dg-end-multiline-output "" } */
+
+/* { dg-begin-multiline-output "" }
+ NN | for (; c; c = e)
+ | ^
+ | |
+ | (1) when the condition is evaluated to false
+ { dg-end-multiline-output "" } */
+
+/* { dg-begin-multiline-output "" }
+ NN | j m;
+ | ^
+ { dg-end-multiline-output "" } */