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authorths <ths@c046a42c-6fe2-441c-8c8c-71466251a162>2007-10-08 13:32:20 +0000
committerths <ths@c046a42c-6fe2-441c-8c8c-71466251a162>2007-10-08 13:32:20 +0000
commitdd43edf4e136bff05cbbb6b42b96c024c591dbb9 (patch)
treed1f03b9c92753846ba462c5a1583af5106333d58 /tests/cris/check_gcctorture_pr28634.c
parent83fa1010ae342c5ad0392182fcdcce438c71b163 (diff)
CRIS testsuite, based on the SIM testsuite, by Edgar E. Iglesias.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3365 c046a42c-6fe2-441c-8c8c-71466251a162
Diffstat (limited to 'tests/cris/check_gcctorture_pr28634.c')
-rw-r--r--tests/cris/check_gcctorture_pr28634.c15
1 files changed, 15 insertions, 0 deletions
diff --git a/tests/cris/check_gcctorture_pr28634.c b/tests/cris/check_gcctorture_pr28634.c
new file mode 100644
index 0000000000..a0c525497d
--- /dev/null
+++ b/tests/cris/check_gcctorture_pr28634.c
@@ -0,0 +1,15 @@
+/* PR rtl-optimization/28634. On targets with delayed branches,
+ dbr_schedule could do the next iteration's addition in the
+ branch delay slot, then subtract the value again if the branch
+ wasn't taken. This can lead to rounding errors. */
+double x = -0x1.0p53;
+double y = 1;
+int
+main (void)
+{
+ while (y > 0)
+ y += x;
+ if (y != x + 1)
+ abort ();
+ exit (0);
+}