Comment 6 for bug 1837525

Rebuilding eoan gcc-9.2.1 and comparing test results between -march=zEC12 & -march=z13 -mtune=z15

There appear to be (a) improved test results (FAIL->PASS) (b) not supported tests anymore (PASS->missing) (c) regressed tests (PASS->FAIL). This needs investigating. I will publish raw logs (massaged to reduce non-reproducible directory names) shortly. Here are some highlights.

Regressions:

-PASS: gcc.dg/attr-vector_size.c LP64 (test for errors, line 33)
-PASS: gcc.dg/attr-vector_size.c LP64 (test for errors, line 60)
-PASS: gcc.dg/attr-vector_size.c (test for excess errors)
+FAIL: gcc.dg/attr-vector_size.c (internal compiler error)
+FAIL: gcc.dg/attr-vector_size.c LP64 (test for errors, line 33)
+FAIL: gcc.dg/attr-vector_size.c LP64 (test for errors, line 60)
+FAIL: gcc.dg/attr-vector_size.c (test for excess errors)

-PASS: gcc.dg/tree-ssa/gen-vect-11.c scan-tree-dump-times vect "vectorized 1 loops" 1
+FAIL: gcc.dg/tree-ssa/gen-vect-11.c scan-tree-dump-times vect "vectorized 1 loops" 1

-PASS: gcc.dg/tree-ssa/gen-vect-26.c scan-tree-dump-times vect "Vectorizing an unaligned access" 0
-PASS: gcc.dg/tree-ssa/gen-vect-26.c scan-tree-dump-times vect "Alignment of access forced using peeling" 1
+FAIL: gcc.dg/tree-ssa/gen-vect-26.c scan-tree-dump-times vect "Vectorizing an unaligned access" 0
+FAIL: gcc.dg/tree-ssa/gen-vect-26.c scan-tree-dump-times vect "Alignment of access forced using peeling" 1

-PASS: gcc.dg/tree-ssa/gen-vect-28.c scan-tree-dump-times vect "Vectorizing an unaligned access" 0
-PASS: gcc.dg/tree-ssa/gen-vect-28.c scan-tree-dump-times vect "Alignment of access forced using peeling" 1
+FAIL: gcc.dg/tree-ssa/gen-vect-28.c scan-tree-dump-times vect "Vectorizing an unaligned access" 0
+FAIL: gcc.dg/tree-ssa/gen-vect-28.c scan-tree-dump-times vect "Alignment of access forced using peeling" 1

-PASS: gcc.dg/tree-ssa/gen-vect-32.c scan-tree-dump-times vect "vectorized 1 loops" 1
+FAIL: gcc.dg/tree-ssa/gen-vect-32.c scan-tree-dump-times vect "vectorized 1 loops" 1