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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_3.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_3.c')
-rw-r--r--gcc/testsuite/gcc.dg/pr109071_3.c42
1 files changed, 42 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/pr109071_3.c b/gcc/testsuite/gcc.dg/pr109071_3.c
new file mode 100644
index 0000000..c7b86eb
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pr109071_3.c
@@ -0,0 +1,42 @@
+/* PR tree-optimization/109071 need more context for -Warray-bounds warnings
+ due to code duplication from jump threading.
+ test case is from PR108770, 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 "" } */
+extern void put(int i);
+int check_idx(int i) {
+ if (i > 1)
+ put(i);
+ return i;
+}
+const char *arr[] = {"A", 0};
+void init() {
+ int i = 0;
+ while (arr[check_idx(i)] != 0) { /* { dg-warning "is above array bounds of" } */
+ if (arr[check_idx(i)]) {}
+ i++;
+ }
+}
+/* { dg-begin-multiline-output "" }
+ NN | while (arr[check_idx(i)] != 0) {
+ | ~~~^~~~~~~~~~~~~~
+ 'init': events 1-2
+ NN | if (i > 1)
+ | ^
+ | |
+ | (1) when the condition is evaluated to true
+......
+ { dg-end-multiline-output "" } */
+
+/* { dg-begin-multiline-output "" }
+ NN | while (arr[check_idx(i)] != 0) {
+ | ~~~~~~~~~~~~~~~~~
+ | |
+ | (2) warning happens here
+ { dg-end-multiline-output "" } */
+
+/* { dg-begin-multiline-output "" }
+ NN | const char *arr[] = {"A", 0};
+ | ^~~
+ { dg-end-multiline-output "" } */