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[AArch64] Add -fno-vect-cost-model to sve2/whilerw_1.c

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Bumping the cost of vec_to_scalar made the .s loop in
gcc.target/aarch64/sve2/whilerw_1.c use a runtime profitability check,
like the .d version already did.  Since the cost model isn't really
being tested here, the most robust fix seemed to be to disable it,
which I should really have done from the outset.

2019-11-21  Richard Sandiford  <richard.sandiford@arm.com>

gcc/testsuite/
	* gcc.target/aarch64/sve2/whilerw_1.c: Add -fno-vect-cost-model.
	Require x0 in the .d test too.

From-SVN: r278549
This commit is contained in:
Richard Sandiford 2019-11-21 12:03:54 +00:00 committed by Richard Sandiford
parent 01a0fba626
commit e2a05fdfd4
2 changed files with 7 additions and 2 deletions
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5
gcc/testsuite/ChangeLog
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@ -1,3 +1,8 @@
2019-11-21 Richard Sandiford <richard.sandiford@arm.com>
* gcc.target/aarch64/sve2/whilerw_1.c: Add -fno-vect-cost-model.
Require x0 in the .d test too.
2019-11-21 Jakub Jelinek <jakub@redhat.com>
PR tree-optimization/91355

4
gcc/testsuite/gcc.target/aarch64/sve2/whilerw_1.c
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@ -1,5 +1,5 @@
/* { dg-do compile } */
/* { dg-options "-O2 -ftree-vectorize" } */
/* { dg-options "-O2 -ftree-vectorize -fno-vect-cost-model" } */
/* { dg-require-effective-target lp64 } */
#include <stdint.h>
@ -26,5 +26,5 @@ TEST_LOOP (int64_t);
/* { dg-final { scan-assembler-times {\twhilerw\tp[0-9]+\.b, x0, x1\n} 1 } } */
/* { dg-final { scan-assembler-times {\twhilerw\tp[0-9]+\.h, x0, x1\n} 1 } } */
/* { dg-final { scan-assembler-times {\twhilerw\tp[0-9]+\.s, x0, x1\n} 1 } } */
/* { dg-final { scan-assembler-times {\twhilerw\tp[0-9]+\.d, x[0-9]+, x1\n} 1 } } */
/* { dg-final { scan-assembler-times {\twhilerw\tp[0-9]+\.d, x0, x1\n} 1 } } */
/* { dg-final { scan-assembler-not {\twhilewr\t} } } */