clastb_8.c was using scan-tree-dump-times to check for fully-masked
loops, which made it sensitive to the number of times we try to
vectorize.
Tested on aarch64-linux-gnu and applied as r278340.
Richard
2019-11-16 Richard Sandiford <richard.sandif...@arm.com>
gcc/testsuite/
* gcc.target/aarch64/sve/clastb_8.c: Use assembly tests to
check for fully-masked loops.
Index: gcc/testsuite/gcc.target/aarch64/sve/clastb_8.c
===================================================================
--- gcc/testsuite/gcc.target/aarch64/sve/clastb_8.c 2019-10-29
08:29:01.800453312 +0000
+++ gcc/testsuite/gcc.target/aarch64/sve/clastb_8.c 2019-11-16
10:57:44.155194560 +0000
@@ -1,5 +1,5 @@
/* { dg-do assemble { target aarch64_asm_sve_ok } } */
-/* { dg-options "-O2 -ftree-vectorize -fdump-tree-vect-details
-msve-vector-bits=256 --save-temps" } */
+/* { dg-options "-O2 -ftree-vectorize -msve-vector-bits=256 --save-temps" } */
#include <stdint.h>
@@ -19,8 +19,11 @@ TEST_TYPE (uint16_t);
TEST_TYPE (uint32_t);
TEST_TYPE (uint64_t);
-/* { dg-final { scan-tree-dump-times "using a fully-masked loop." 4 "vect" } }
*/
/* { dg-final { scan-assembler {\tclastb\t(b[0-9]+), p[0-7], \1, z[0-9]+\.b\n}
} } */
/* { dg-final { scan-assembler {\tclastb\t(h[0-9]+), p[0-7], \1, z[0-9]+\.h\n}
} } */
/* { dg-final { scan-assembler {\tclastb\t(s[0-9]+), p[0-7], \1, z[0-9]+\.s\n}
} } */
/* { dg-final { scan-assembler {\tclastb\t(d[0-9]+), p[0-7], \1, z[0-9]+\.d\n}
} } */
+/* { dg-final { scan-assembler {\twhilelo\tp[0-9]+\.b,} } } */
+/* { dg-final { scan-assembler {\twhilelo\tp[0-9]+\.h,} } } */
+/* { dg-final { scan-assembler {\twhilelo\tp[0-9]+\.s,} } } */
+/* { dg-final { scan-assembler {\twhilelo\tp[0-9]+\.d,} } } */
