https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96448
Bug ID: 96448 Summary: ICE: maximum number of generated reload insns per insn achieved (90) Product: gcc Version: 11.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: target Assignee: unassigned at gcc dot gnu.org Reporter: asolokha at gmx dot com Target Milestone: --- Target: powerpc-*-linux-gnu Probably another invalid target issue, but still… gcc-11.0.0-alpha20200802 snapshot (g:6e46b3f3da5c03bc529b3690dd0995927feb9142) configured for a 32-bit BE powerpc target ICEs when compiling the following testcase, extracted from test/CodeGen/x86-inline-asm-min-vector-width.c from clang 10.0.1 test suite, w/ -mcpu=power10: typedef long long __m256i __attribute__ ((vector_size (32))); __m256i testYMMout(__m256i *p) { __m256i ymm0; __asm__("vmovdqu %1, %0" :"=v"(ymm0) : "m"(*(__m256i*)p)); return ymm0; } % powerpc-e300c3-linux-gnu-gcc-11.0.0 -mcpu=power10 -w -c dcbvmywg.c dcbvmywg.c: In function 'testYMMout': dcbvmywg.c:5:3: note: the layout of aggregates containing vectors with 32-byte alignment has changed in GCC 5 5 | __asm__("vmovdqu %1, %0" :"=v"(ymm0) : "m"(*(__m256i*)p)); | ^~~~~~~ during RTL pass: reload dcbvmywg.c:7:1: internal compiler error: maximum number of generated reload insns per insn achieved (90) 7 | } | ^ 0xc1ddd0 lra_constraints(bool) /var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-11.0.0_alpha20200802/work/gcc-11-20200802/gcc/lra-constraints.c:4954 0xc07540 lra(_IO_FILE*) /var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-11.0.0_alpha20200802/work/gcc-11-20200802/gcc/lra.c:2415 0xbbea4c do_reload /var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-11.0.0_alpha20200802/work/gcc-11-20200802/gcc/ira.c:5525 0xbbea4c execute /var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-11.0.0_alpha20200802/work/gcc-11-20200802/gcc/ira.c:5711