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From: Prathamesh Kulkarni <prathamesh3492@gcc.gnu.org> To: gcc-cvs@gcc.gnu.org Subject: [gcc r14-2044] [aarch64/match.pd] Fix ICE observed in PR110280. Date: Fri, 23 Jun 2023 09:59:01 +0000 (GMT) [thread overview] Message-ID: <20230623095901.8309A3858D20@sourceware.org> (raw) https://gcc.gnu.org/g:85d8e0d8d5342ec8b4e6a54e22741c30b33c6f04 commit r14-2044-g85d8e0d8d5342ec8b4e6a54e22741c30b33c6f04 Author: Prathamesh Kulkarni <prathamesh.kulkarni@linaro.org> Date: Fri Jun 23 15:27:17 2023 +0530 [aarch64/match.pd] Fix ICE observed in PR110280. gcc/ChangeLog: PR tree-optimization/110280 * match.pd (vec_perm_expr(v, v, mask) -> v): Explicitly build vector using build_vector_from_val with the element of input operand, and mask's type if operand and mask's types don't match. gcc/testsuite/ChangeLog: PR tree-optimization/110280 * gcc.target/aarch64/sve/pr110280.c: New test. Diff: --- gcc/match.pd | 9 ++++++++- gcc/testsuite/gcc.target/aarch64/sve/pr110280.c | 12 ++++++++++++ 2 files changed, 20 insertions(+), 1 deletion(-) diff --git a/gcc/match.pd b/gcc/match.pd index 48b76e6a051..33ccda3e7b6 100644 --- a/gcc/match.pd +++ b/gcc/match.pd @@ -8672,7 +8672,14 @@ and, (simplify (vec_perm vec_same_elem_p@0 @0 @1) - @0) + (if (types_match (type, TREE_TYPE (@0))) + @0 + (with + { + tree elem = uniform_vector_p (@0); + } + (if (elem) + { build_vector_from_val (type, elem); })))) /* Push VEC_PERM earlier if that may help FMA perception (PR101895). */ (simplify diff --git a/gcc/testsuite/gcc.target/aarch64/sve/pr110280.c b/gcc/testsuite/gcc.target/aarch64/sve/pr110280.c new file mode 100644 index 00000000000..d3279f38362 --- /dev/null +++ b/gcc/testsuite/gcc.target/aarch64/sve/pr110280.c @@ -0,0 +1,12 @@ +/* { dg-do compile } */ +/* { dg-options "-O3 -fdump-tree-optimized" } */ + +#include "arm_sve.h" + +svuint32_t l() +{ + _Alignas(16) const unsigned int lanes[4] = {0, 0, 0, 0}; + return svld1rq_u32(svptrue_b8(), lanes); +} + +/* { dg-final { scan-tree-dump-not "VEC_PERM_EXPR" "optimized" } } */
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