[Bug rtl-optimization/13653] [3.3 regression] -O2 -funroll-loop miscompiles POOMA testcase

[rguenth at tat dot physik dot uni-tuebingen dot de]

------- Additional Comments From rguenth at tat dot physik dot uni-tuebingen dot de  2004-05-24 13:44 -------
Subject: Re:  [3.3 regression] -O2 -funroll-loop
 miscompiles POOMA testcase

After a complete test with the patch, regression test results for POOMA
are (compared to Feb01):

+PASSED ... array_test1
+PASSED ... array_test7
+PASSED ... array_test21
+FAILED ... array_test27
+PASSED ... array_test28
+PASSED ... ump_test5: guard cell fill test.
+PASSED ... ump_test7
-PASSED ... gmp_test4 (Guard cell fill test)
-PASSED ... brickviewbase_test2
-FAILED ... brickviewbase_test3
+PASSED ... brickviewbase_test3
-PASSED ... FieldReductions
+PASSED ... Gradient
-PASSED ... OffsetReduction
+PASSED ... FileSetWriter
+PASSED ... FileSetWriterTest2
-PASSED ... TestTranspose

where FAILED ... array_test27 is a known FP precision problem with
gcc-3.3.  New PASSED/FAILED without corresponding vanishing FAILED/PASSED
are previous/new compile errors or runtime segfaults.

Should I file a new PR with the loop optimizer ICE?

Thanks,
Richard.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13653