Package: gcc-16 Version: 16-20251214-1 Severity: normal Tags: upstream Forwarded: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=123584 X-Debbugs-Cc: [email protected]
Hello, I found this ICE while testing a recent snapshot of GCC trunk against the SIMDe library using "march=armv8-a+sve2-sha3". the exact version of GCC: 16.0.0 20251214 (experimental) [trunk r16-6108-g427ddf95eef] (Debian 16-20251214-1) Minimal reproducer using the Compiler Explorer, still has an ICE with its 20260104 GCC snapshot: https://godbolt.org/z/nzhhzqz8c; along with GCC 15.1 & 15.2 (but not with version 13.2 through 14.3) the system type: aarch64-linux-gnu the original complete command line that triggers the bug: /usr/libexec/gcc/aarch64-linux-gnu/16/cc1 -quiet -I test/arm/neon/xar-native-c.p -I test/arm/neon -I ../test/arm/neon -I . -I .. -imultiarch aarch64-linux-gnu -MD test/arm/neon/xar-native-c.p/xar.c.d -MF test/arm/neon/xar-native-c.p/xar.c.o.d -MQ test/arm/neon/xar-native-c.p/xar.c.o -D _FILE_OFFSET_BITS=64 -D SIMDE_CONSTRAINED_COMPILATION -D SIMDE_ENABLE_OPENMP -D SIMDE_TEST_BARE ../test/arm/neon/xar.c -mno-fix-cortex-a53-835769 -mno-fix-cortex-a53-843419 -quiet -dumpdir test/arm/neon/xar-native-c.p/ -dumpbase xar.c.c -dumpbase-ext .c -march=armv8-a+sve2-sha3 -mlittle-endian -mabi=lp64 -g -Winvalid-pch -Wall -Wextra -Werror -std=c99 -fdiagnostics-color=always -fopenmp-simd -freport-bug -fasynchronous-unwind-tables -o - -frandom-seed=0 -fdump-noaddr the compiler output (error messages, warnings, etc.): ../test/arm/neon/xar.c: In function 'test_simde_vxarq_u64': ../test/arm/neon/xar.c:74:1: error: unrecognizable insn: 74 | } | ^ (insn 453 452 457 139 (set (reg:V2DI 109 [ D.44270 ]) (rotate:V2DI (xor:V2DI (reg:V2DI 201) (reg:V2DI 202)) (const_vector:V2DI [ (const_int 64 [0x40]) repeated x2 ]))) "/usr/lib/gcc/aarch64-linux-gnu/16/include/arm_neon.h":26914:10 -1 (nil)) during RTL pass: vregs ../test/arm/neon/xar.c:74:1: internal compiler error: in extract_insn, at recog.cc:2888 0x1199f5b internal_error(char const*, ...) ../../src/gcc/diagnostic-global-context.cc:787 0x119a03b fancy_abort(char const*, int, char const*) ../../src/gcc/diagnostics/context.cc:1805 0xa0de73 _fatal_insn(char const*, rtx_def const*, char const*, int, char const*) ../../src/gcc/rtl-error.cc:108 0xa0e03b _fatal_insn_not_found(rtx_def const*, char const*, int, char const*) ../../src/gcc/rtl-error.cc:116 0x1895fc3 extract_insn(rtx_insn*) ../../src/gcc/recog.cc:2888 0x2268c47 instantiate_virtual_regs_in_insn ../../src/gcc/function.cc:1609 0x2268c47 instantiate_virtual_regs ../../src/gcc/function.cc:1985 0x2268c47 execute ../../src/gcc/function.cc:2032 -- System Information: Debian Release: forky/sid APT prefers unstable-debug APT policy: (500, 'unstable-debug'), (500, 'unstable'), (1, 'experimental-debug'), (1, 'experimental') Architecture: arm64 (aarch64) Kernel: Linux 6.12.63+deb13-arm64 (SMP w/8 CPU threads) Locale: LANG=C, LC_CTYPE=C.UTF-8 (charmap=UTF-8), LANGUAGE not set Shell: /bin/sh linked to /usr/bin/dash Init: unable to detect Versions of packages gcc-16 depends on: ii binutils 2.45.50.20251209-1 ii cpp-16 16-20251214-1 ii gcc-16-aarch64-linux-gnu 16-20251214-1 ii gcc-16-base 16-20251214-1 Versions of packages gcc-16 recommends: ii libc6-dev 2.42-7 Versions of packages gcc-16 suggests: pn gcc-16-doc <none> pn gcc-16-locales <none> -- no debconf information
