[testsuite] xfail vect-121.c on ia32 [PR119293]

Once fre5 resolves conditional of the guard block for the vectorized
loop, cfgcleanup removes the edge that bypasses it, adjusting the
other edge probability, but not the edge's dest's count.  The blocks
get combined, and their counts are merged, but nothing adjusts the
counts of the block that lost an incoming edge.

The incoming counts remain inconsistent from that point on, and get
reported as "Invalid sum of incoming counts" in the tree dump where
vect-121.c checks for the absence of this error.

That was added in response to a fix for a vectorizer profile count
management problem.  This is a different profile count management
problem, so it makes sense to silence this failure marking it as
expected.

for  gcc/testsuite/ChangeLog

	PR tree-optimization/119293
	* gcc.dg/vect/vect-121.c: XFAIL on ia32.

diff --git a/gcc/testsuite/gcc.dg/vect/vect-121.c b/gcc/testsuite/gcc.dg/vect/vect-121.c
index d820215ca67c08409be7f2cb3daa24802ff100a0..1b9357d82a281d4ebd3ab1c784a11f5a14d2620b 100644 (file)
--- a/gcc/testsuite/gcc.dg/vect/vect-121.c
+++ b/gcc/testsuite/gcc.dg/vect/vect-121.c
@@ -16,4 +16,4 @@ test (int start, int end)
 }
 
 /* { dg-final { scan-tree-dump "vectorized 1 loops" "vect" } } */
-/* { dg-final { scan-tree-dump-not "Invalid sum" "optimized" } } */
+/* { dg-final { scan-tree-dump-not "Invalid sum" "optimized" { xfail ia32 } } } */