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From: "julienpommier at free dot fr" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug c/111935] New: gcc ICE with risc-v vector intrinsics Date: Mon, 23 Oct 2023 12:52:49 +0000 [thread overview] Message-ID: <bug-111935-4@http.gcc.gnu.org/bugzilla/> (raw) https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111935 Bug ID: 111935 Summary: gcc ICE with risc-v vector intrinsics Product: gcc Version: 13.2.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c Assignee: unassigned at gcc dot gnu.org Reporter: julienpommier at free dot fr Target Milestone: --- The following code (test.c) crashes the riscv gcc 13.2.0 compiler of ubuntu 23.10: #include <riscv_vector.h> inline vuint32m4_t __attribute__((__always_inline__)) transpose_indexes() { static const uint32_t idx_[16] = {0, 4, 8, 12, 1, 5, 9, 13, 2, 6, 10, 14, 3, 7, 11, 15}; return __riscv_vle32_v_u32m4(idx_, 16); } void pffft_real_preprocess_4x4(const float *in) { vfloat32m1_t r0=__riscv_vle32_v_f32m1(in,4); vfloat32m4_t tmp = __riscv_vundefined_f32m4(); tmp = __riscv_vset_v_f32m1_f32m4(tmp, 0, r0); tmp = __riscv_vset_v_f32m1_f32m4(tmp, 1, r0); tmp = __riscv_vset_v_f32m1_f32m4(tmp, 2, r0); tmp = __riscv_vset_v_f32m1_f32m4(tmp, 3, r0); tmp = __riscv_vrgather_vv_f32m4(tmp, transpose_indexes(), 16); r0 = __riscv_vget_v_f32m4_f32m1(tmp, 0); } when compiled with: riscv64-linux-gnu-gcc-13 -O1 -march=rv64gcv -c testcase.c the output is: during RTL pass: expand test.c: In function ‘pffft_real_preprocess_4x4’: test.c:19:8: internal compiler error: Segmentation fault 19 | r0 = __riscv_vget_v_f32m4_f32m1(tmp, 0); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 0xffffae3a7583 __libc_start_call_main ../sysdeps/nptl/libc_start_call_main.h:58 0xffffae3a7657 __libc_start_main_impl ../csu/libc-start.c:360 Please submit a full bug report, with preprocessed source (by using -freport-bug). Please include the complete backtrace with any bug report. See <file:///usr/share/doc/gcc-13/README.Bugs> for instructions.
next reply other threads:[~2023-10-23 12:52 UTC|newest] Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top 2023-10-23 12:52 julienpommier at free dot fr [this message] 2023-10-23 17:08 ` [Bug target/111935] " pinskia at gcc dot gnu.org 2023-10-24 7:48 ` cvs-commit at gcc dot gnu.org 2023-10-31 2:50 ` cvs-commit at gcc dot gnu.org 2024-02-17 3:30 ` aoliva at gcc dot gnu.org 2024-04-24 8:59 ` kito at gcc dot gnu.org
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