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| author | Peter Bergner <bergner@linux.ibm.com> | 2022-02-15 16:51:32 -0600 |
|---|---|---|
| committer | Peter Bergner <bergner@linux.ibm.com> | 2022-02-15 16:53:07 -0600 |
| commit | 3d8d8e34f796fefda53be9a6cec7c6c950856a14 (patch) | |
| tree | 81a21c66bb24529eec3ac5c63d888db63d93db29 /gcc | |
| parent | e15425e899e4a9eec768cf74aaf36cdbf1d29913 (diff) | |
| download | gcc-3d8d8e34f796fefda53be9a6cec7c6c950856a14.zip gcc-3d8d8e34f796fefda53be9a6cec7c6c950856a14.tar.gz gcc-3d8d8e34f796fefda53be9a6cec7c6c950856a14.tar.bz2 | |
rs6000: Retry tbegin. instructions that can fail intermittently
The HTM tbegin. instruction can fail intermittently due to many reasons.
This can lead to htm-1.c FAILing from time to time. The solution is to
allow retrying the instruction a few times before aborting.
2022-02-15 Peter Bergner <bergner@linux.ibm.com>
gcc/testsuite/
* gcc.target/powerpc/htm-1.c: Retry intermittent failing tbegins.
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/testsuite/gcc.target/powerpc/htm-1.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/gcc/testsuite/gcc.target/powerpc/htm-1.c b/gcc/testsuite/gcc.target/powerpc/htm-1.c index f27e32c..399a7ec 100644 --- a/gcc/testsuite/gcc.target/powerpc/htm-1.c +++ b/gcc/testsuite/gcc.target/powerpc/htm-1.c @@ -12,14 +12,21 @@ main (void) { long i; unsigned long mask = 0; + unsigned long retry_count = 0; repeat: if (__builtin_tbegin (0)) { mask++; + retry_count = 0; } else - abort(); + { + /* Retry a limited number of times before aborting. */ + if (retry_count++ < 10) + goto repeat; + abort (); + } if (mask == 1) { |