[Committed,testsuite] Fix PR92870
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Message ID e80ebec0-8516-da6c-842f-86a0395af5eb@arm.com
State New
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  • [Committed,testsuite] Fix PR92870
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Commit Message

Sudakshina Das Dec. 12, 2019, 6:04 p.m. UTC
Hi

With my recent commit, I added a test that is not passing on all 
targets. My change was valid for targets that have a vector/scalar 
shift/rotate optabs (optab that supports vector shifted by scalar).

Since it does not seem to be easy to find out which targets would 
support it, I am limiting the test to the target that I know pass.

Committed as obvious r279310.

gcc/testsuite/ChangeLog

2019-12-12  Sudakshina Das  <sudi.das@arm.com>

	PR testsuite/92870
	* gcc.dg/vect/vect-shift-5.c: Add target to scan-tree-dump.

Patch
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diff --git a/gcc/testsuite/gcc.dg/vect/vect-shift-5.c b/gcc/testsuite/gcc.dg/vect/vect-shift-5.c
index c1fd4f2..68e517e 100644
--- a/gcc/testsuite/gcc.dg/vect/vect-shift-5.c
+++ b/gcc/testsuite/gcc.dg/vect/vect-shift-5.c
@@ -16,4 +16,7 @@  int foo (uint32_t arr[4][4])
     return (((uint16_t)sum) + ((uint32_t)sum >> 16)) >> 1;
 }
 
-/* { dg-final { scan-tree-dump {vectorizable_shift ===[\n\r][^\n]*prologue_cost = 0} "vect" } } */
+/* For a target that has a vector/scalar shift/rotate optab, check
+   that we are not adding the cost of creating a vector from the scalar
+   in the prologue.  */
+/* { dg-final { scan-tree-dump {vectorizable_shift ===[\n\r][^\n]*prologue_cost = 0} "vect" { target { aarch64*-*-* x86_64-*-* } } } } */