https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113573
Bug ID: 113573 Summary: aarch64: internal compiler error in mark_label_nuses Product: gcc Version: 14.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: target Assignee: unassigned at gcc dot gnu.org Reporter: mpolacek at gcc dot gnu.org Target Milestone: --- With the test below (should be cleaned up a bit) I get: $ ./cc1 -quiet -Iinclude rtl.c -O0 $ ./cc1 -quiet -Iinclude rtl.c -O during RTL pass: split1 rtl.c: In function ‘jsimd_extbgrx_ycc_convert_neon’: rtl.c:38:1: internal compiler error: Segmentation fault 38 | } | ^ 0x10534af crash_signal /home/mpolacek/src/gcc/gcc/toplev.cc:317 0x7f1de238d99f ??? /usr/src/debug/glibc-2.38-14.fc39.x86_64/signal/../sysdeps/unix/sysv/linux/x86_64/libc_sigaction.c:0 0xbf42bd mark_label_nuses /home/mpolacek/src/gcc/gcc/emit-rtl.cc:3896 0xbf432a mark_label_nuses /home/mpolacek/src/gcc/gcc/emit-rtl.cc:3907 0xbf4309 mark_label_nuses /home/mpolacek/src/gcc/gcc/emit-rtl.cc:3904 0xbf914e try_split(rtx_def*, rtx_insn*, int) /home/mpolacek/src/gcc/gcc/emit-rtl.cc:4093 0xfae317 split_insn /home/mpolacek/src/gcc/gcc/recog.cc:3405 0xfb3997 split_all_insns() /home/mpolacek/src/gcc/gcc/recog.cc:3509 0xfb3ab8 execute /home/mpolacek/src/gcc/gcc/recog.cc:4433 $ cat rtl.c #pragma GCC aarch64 "arm_neon.h" typedef __Uint8x8_t uint8x8_t; typedef __Uint16x4_t uint16x4_t; typedef __Int16x8_t int16x8_t; typedef __Uint16x8_t uint16x8_t; int jsimd_extbgrx_ycc_convert_neon_image_width, jsimd_extbgrx_ycc_convert_neon___trans_tmp_1; uint16x4_t jsimd_extbgrx_ycc_convert_neon___trans_tmp_2; uint16x8_t vcombine_u16(); uint16x8_t vmovl_u8(uint8x8_t __a) { return __builtin_aarch64_uxtlv8hi_uu(__a); } __inline int __attribute__((__gnu_inline__)) vmull_laneq_u16(); uint8x8x4_t vld4_u8(); void jsimd_extbgrx_ycc_convert_neon() { int scaled_128_5 = jsimd_extbgrx_ycc_convert_neon___trans_tmp_1, cols_remaining = jsimd_extbgrx_ycc_convert_neon_image_width; for (;;) if (cols_remaining) { uint8x8x4_t input_pixels = vld4_u8(); uint16x8_t r = vmovl_u8(input_pixels.val[2]); uint16x8_t g = vmovl_u8(input_pixels.val[1]); uint16x8_t b = vmovl_u8(input_pixels.val[0]); int y_l = vmull_laneq_u16(r); uint16x8_t __a = g; jsimd_extbgrx_ycc_convert_neon___trans_tmp_2 = (uint16x4_t)__builtin_aarch64_get_lowv8hi((int16x8_t)__a); __a = b; int cb_l = scaled_128_5; int cb_h = scaled_128_5; int cr_l = scaled_128_5; int cr_h = scaled_128_5; uint16x8_t y_u16 = vcombine_u16(y_l); uint16x8_t cb_u16 = vcombine_u16(cb_l, cb_h); uint16x8_t cr_u16 = vcombine_u16(cr_l, cr_h); __a = y_u16 = cb_u16 = cr_u16; } }