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tree-optimization/107766 - ICE with recent -ffp-contract=off fix

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The following uses *node to check for FP types rather than the
child nodes which could be constant leafs and thus without a
vector type.

	PR tree-optimization/107766
	* tree-vect-slp-patterns.cc (complex_mul_pattern::matches):
	Use *node to check for FP vector types.

	* g++.dg/vect/pr107766.cc: New testcase.

(cherry picked from commit 1a06ae6f2f)
This commit is contained in:
Richard Biener 2022-11-21 07:56:06 +01:00
parent a9fafa2f53
commit 9e242f8a2d
2 changed files with 24 additions and 1 deletions
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23
gcc/testsuite/g++.dg/vect/pr107766.cc Normal file
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@ -0,0 +1,23 @@
// { dg-do compile }
// { dg-additional-options "-ffp-contract=off" }
typedef double btScalar;
struct btVector3 {
operator btScalar *() const;
};
double m_vec[2];
struct btShapeMatrix {
double &operator[](int i) { return m_vec[i]; }
};
btScalar shape_function___1pxt1pz, shape_function__fac;
struct btMiniSDF {
void shape_function_(btVector3 const &) const;
};
void btMiniSDF::shape_function_(btVector3 const &xi) const {
btShapeMatrix res;
btScalar _1m3y = 1.0 - 3.0 * xi[1], _1p3y = 1.0 + 3.0 * xi[1],
fact1m3y = shape_function__fac * _1m3y,
fact1p3y = shape_function__fac * _1p3y;
res[22] = fact1m3y * shape_function___1pxt1pz;
res[23] = fact1p3y * shape_function___1pxt1pz;
}

2
gcc/tree-vect-slp-patterns.cc
View File

@ -1039,7 +1039,7 @@ complex_mul_pattern::matches (complex_operation_t op,
with -ffp-contract=fast. */
if (!mul0
&& (flag_fp_contract_mode == FP_CONTRACT_FAST
|| !FLOAT_TYPE_P (SLP_TREE_VECTYPE (l0node[0])))
|| !FLOAT_TYPE_P (SLP_TREE_VECTYPE (*node)))
&& vect_match_expression_p (l0node[0], PLUS_EXPR))
{
auto vals = SLP_TREE_CHILDREN (l0node[0]);