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| author | Tamar Christina <tamar.christina@arm.com> | 2021-03-30 14:16:03 +0100 |
|---|---|---|
| committer | Tamar Christina <tamar.christina@arm.com> | 2021-03-30 14:16:03 +0100 |
| commit | 9c68e2abe294a48385224cd7617eca0720144b5c (patch) | |
| tree | ca2f23791d9eea0b50e619a244a9b5f8968f538f /gcc | |
| parent | 6f93a7c7fc62b2d6ab47e5d5eb60d41366e1ee9e (diff) | |
| download | gcc-9c68e2abe294a48385224cd7617eca0720144b5c.zip gcc-9c68e2abe294a48385224cd7617eca0720144b5c.tar.gz gcc-9c68e2abe294a48385224cd7617eca0720144b5c.tar.bz2 | |
slp: reject non-multiple of 2 laned SLP trees (PR99825)
TWO_OPERANDS allows any order or number of combinations of + and - operations
but the pattern matcher only supports pairs of operations.
This patch has the pattern matcher for complex numbers reject SLP trees where
the lanes are not a multiple of 2.
gcc/ChangeLog:
PR tree-optimization/99825
* tree-vect-slp-patterns.c (vect_check_evenodd_blend):
Reject non-mult 2 lanes.
gcc/testsuite/ChangeLog:
PR tree-optimization/99825
* gfortran.dg/vect/pr99825.f90: New test.
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/testsuite/gfortran.dg/vect/pr99825.f90 | 15 | ||||
| -rw-r--r-- | gcc/tree-vect-slp-patterns.c | 3 |
2 files changed, 17 insertions, 1 deletions
diff --git a/gcc/testsuite/gfortran.dg/vect/pr99825.f90 b/gcc/testsuite/gfortran.dg/vect/pr99825.f90 new file mode 100644 index 0000000..b1423df --- /dev/null +++ b/gcc/testsuite/gfortran.dg/vect/pr99825.f90 @@ -0,0 +1,15 @@ +! { dg-do compile } +! { dg-additional-options "-march=armv8.3-a -O3" { target { aarch64*-*-* } } } + +program main + complex, dimension(3, 2) :: a + complex, dimension(2, 4) :: b + complex, dimension(3, 4) :: c, res1 + + data a /0, (-5., -7.), (11., -13.), 0, 0, 0/ + data b /0, 0, 0, 0, 0, 0, 0, 0/ + data res1 /0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0/ + + c = matmul(a, conjg(b)) + if (any(res1 /= c)) stop 2 +end program main diff --git a/gcc/tree-vect-slp-patterns.c b/gcc/tree-vect-slp-patterns.c index cdd61e9..b25655c 100644 --- a/gcc/tree-vect-slp-patterns.c +++ b/gcc/tree-vect-slp-patterns.c @@ -332,7 +332,8 @@ static inline bool vect_check_evenodd_blend (lane_permutation_t &permutes, unsigned even, unsigned odd) { - if (permutes.length () == 0) + if (permutes.length () == 0 + || permutes.length () % 2 != 0) return false; unsigned val[2] = {even, odd}; |