https://gcc.gnu.org/g:040b979a08843806ea930a8d839dd94301323ebe
commit r14-10643-g040b979a08843806ea930a8d839dd94301323ebe
Author: Tamar Christina <tamar.christ...@arm.com>
Date: Thu Sep 5 10:36:02 2024 +0100
testsuite: remove -fwrapv from signbit-5.c
The meaning of the testcase was changed by passing it -fwrapv. The reason
for
the test failures on some platform was because the test was testing some
implementation defined behavior wrt INT_MIN in generic code.
Instead of using -fwrapv this just removes the border case from the test so
all the values now have a defined semantic. It still relies on the
handling of
shifting a negative value right, but that wasn't changed with -fwrapv
anyway.
The -fwrapv case is being handled already by other testcases.
gcc/testsuite/ChangeLog:
* gcc.dg/signbit-5.c: Remove -fwrapv and change INT_MIN to
INT_MIN+1.
(cherry picked from commit 67eaf67360e434dd5969e1c66f043e3c751f9f52)
Diff:
---
gcc/testsuite/gcc.dg/signbit-5.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/gcc/testsuite/gcc.dg/signbit-5.c b/gcc/testsuite/gcc.dg/signbit-5.c
index 2bca640f930..e778f91ca33 100644
--- a/gcc/testsuite/gcc.dg/signbit-5.c
+++ b/gcc/testsuite/gcc.dg/signbit-5.c
@@ -1,5 +1,5 @@
/* { dg-do run } */
-/* { dg-options "-O3 -fwrapv" } */
+/* { dg-options "-O3" } */
/* This test does not work when the truth type does not match vector type. */
/* { dg-additional-options "-march=armv8-a" { target aarch64_sve } } */
@@ -44,8 +44,8 @@ int main ()
TYPE a[N];
TYPE b[N];
- a[0] = INT_MIN;
- b[0] = INT_MIN;
+ a[0] = INT_MIN+1;
+ b[0] = INT_MIN+1;
for (int i = 1; i < N; ++i)
{
