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authorRichard Biener <rguenther@suse.de>2023-10-20 12:22:52 +0200
committerRichard Biener <rguenther@suse.de>2023-10-20 14:14:13 +0200
commitd70575f542f575133eb4c49eda89ab61eedf83b8 (patch)
tree7d99caa893c3fa3df139ccd7fde7ac809954d85f /gcc
parentc7ec7bd1c6590cf4eed267feab490288e0b8d691 (diff)
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tree-optimization/111891 - fix assert in vectorizable_simd_clone_call
The following fixes the assert in vectorizable_simd_clone_call to assert we have a vector type during transform. Whether we have one during analysis depends on whether another SLP user decided on the type of a constant/external already. When we end up with a mismatch in desire the updating will fail and make vectorization fail. PR tree-optimization/111891 * tree-vect-stmts.cc (vectorizable_simd_clone_call): Fix assert. * gfortran.dg/pr111891.f90: New testcase.
Diffstat (limited to 'gcc')
-rw-r--r--gcc/testsuite/gfortran.dg/pr111891.f9021
-rw-r--r--gcc/tree-vect-stmts.cc8
2 files changed, 28 insertions, 1 deletions
diff --git a/gcc/testsuite/gfortran.dg/pr111891.f90 b/gcc/testsuite/gfortran.dg/pr111891.f90
new file mode 100644
index 0000000..1167ed6
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/pr111891.f90
@@ -0,0 +1,21 @@
+! { dg-do compile }
+! { dg-options "-O2" }
+! { dg-additional-options "-mavx" { target avx } }
+
+!GCC$ builtin (powf) attributes simd (notinbranch) if('x86_64')
+
+PARAMETER (NX=3, G=1.4)
+DIMENSION T(NX,NX), P(NX,NX)
+INTEGER Apx
+COMMON P, T
+
+DO i = 1, 3
+ IF (i < 0.0 ) THEN
+ P(Apx,i) = i**G
+ T(Apx,i) = i**G
+ ELSE
+ P(Apx,i) = 0
+ T(Apx,i) = 0
+ ENDIF
+ENDDO
+END
diff --git a/gcc/tree-vect-stmts.cc b/gcc/tree-vect-stmts.cc
index 8d90286..337b24c 100644
--- a/gcc/tree-vect-stmts.cc
+++ b/gcc/tree-vect-stmts.cc
@@ -4070,7 +4070,13 @@ vectorizable_simd_clone_call (vec_info *vinfo, stmt_vec_info stmt_info,
if (thisarginfo.dt == vect_constant_def
|| thisarginfo.dt == vect_external_def)
{
- gcc_assert (vec_stmt || thisarginfo.vectype == NULL_TREE);
+ /* With SLP we determine the vector type of constants/externals
+ at analysis time, handling conflicts via
+ vect_maybe_update_slp_op_vectype. At transform time
+ we have a vector type recorded for SLP. */
+ gcc_assert (!vec_stmt
+ || !slp_node
+ || thisarginfo.vectype != NULL_TREE);
if (!vec_stmt)
thisarginfo.vectype = get_vectype_for_scalar_type (vinfo,
TREE_TYPE (op),