https://gcc.gnu.org/g:2136b5d9a82b703ec1e0b9881c79997c56c23496
commit 2136b5d9a82b703ec1e0b9881c79997c56c23496 Author: Peter Bergner <[email protected]> Date: Mon Sep 22 12:17:26 2025 -0500 RISC-V: Add missing define_insn_reservation to tt-ascalon-d8.md [PR121982] The tt-ascalon-d8's pipeline description has reservations for 16-bit, 32-bit and 64-bit vector integer divides, but was missing a reservation for 8-bit vector integer divides, leading to an ICE. Add the missing reservation. 2025-09-22 Peter Bergner <[email protected]> gcc/ PR target/121982 * config/riscv/tt-ascalon-d8.md (tt_ascalon_d8_vec_idiv_byte): New define_insn_reservation. gcc/testsuite/ PR target/121982 * gcc.target/riscv/pr121982.c: New test. Signed-off-by: Peter Bergner <[email protected]> (cherry picked from commit 4275518a06333109b6423c4eb15dd86a6479cef5) Diff: --- gcc/config/riscv/tt-ascalon-d8.md | 6 ++++++ gcc/testsuite/gcc.target/riscv/pr121982.c | 16 ++++++++++++++++ 2 files changed, 22 insertions(+) diff --git a/gcc/config/riscv/tt-ascalon-d8.md b/gcc/config/riscv/tt-ascalon-d8.md index 25b99b6129ee..e72012e2b5ba 100644 --- a/gcc/config/riscv/tt-ascalon-d8.md +++ b/gcc/config/riscv/tt-ascalon-d8.md @@ -282,6 +282,12 @@ "tt_ascalon_d8_decode,(tt_ascalon_d8_vec0*3 | tt_ascalon_d8_vec1*3)") ;; Vector integer division +(define_insn_reservation "tt_ascalon_d8_vec_idiv_byte" 16 + (and (eq_attr "tune" "tt_ascalon_d8") + (eq_attr "type" "vidiv") + (eq_attr "sew" "8")) + "tt_ascalon_d8_decode,(tt_ascalon_d8_vec0*3 | tt_ascalon_d8_vec1*3)") + (define_insn_reservation "tt_ascalon_d8_vec_idiv_half" 16 (and (eq_attr "tune" "tt_ascalon_d8") (eq_attr "type" "vidiv") diff --git a/gcc/testsuite/gcc.target/riscv/pr121982.c b/gcc/testsuite/gcc.target/riscv/pr121982.c new file mode 100644 index 000000000000..fb9baf886fda --- /dev/null +++ b/gcc/testsuite/gcc.target/riscv/pr121982.c @@ -0,0 +1,16 @@ +/* { dg-do compile } */ +/* { dg-additional-options "-mcpu=tt-ascalon-d8 -mtune=tt-ascalon-d8" } */ + +/* Verify we don't ICE on the following test cases. */ + +typedef char __attribute__((__vector_size__ (32))) vqi; +typedef short __attribute__((__vector_size__ (32))) vhi; +typedef int __attribute__((__vector_size__ (32))) vsi; +typedef long __attribute__((__vector_size__ (32))) vdi; + +#define TEST(type) type foo_ ## type (type x, type y) { return x / y; } + +TEST(vqi) +TEST(vhi) +TEST(vsi) +TEST(vdi)
