https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102450
--- Comment #2 from dave.anglin at bell dot net --- On 2021-09-22 9:14 a.m., rguenth at gcc dot gnu.org wrote: > what's MAX_BITSIZE_MODE_ANY_INT in insn-modes.h? (in the build directory) > I think it should correspond to TImode and thus be 16 * BITS_PER_UNIT which > means that we're building an INTEGER_TYPE bigger than TImode - can you confirm > that? #define BITS_PER_UNIT (8) #define MAX_BITSIZE_MODE_ANY_INT (16*BITS_PER_UNIT) #define MAX_BITSIZE_MODE_ANY_MODE (32*BITS_PER_UNIT) However, TImode is not supported on this target. (gdb) ignor 1 325 Will ignore next 325 crossings of breakpoint 1. (gdb) r Starting program: /home/dave/gnu/gcc/objdir/gcc/gnat1 -quiet -nostdinc -O2 -Wext ra -Wall -dumpbase s-regpat.adb -dumpbase-ext .adb -gnatwa -fchecking=1 -g -fPIC -gnatpg -gnatO s-regpat.o s-regpat.adb -o s-regpat.s Breakpoint 1, _Z40set_min_and_max_values_for_integral_typeP9tree_nodei6signop (type=<incomplete type>, precision=256, sgn=UNSIGNED) at ../../gcc/gcc/stor-layout.c:2851 2851 gcc_assert (precision <= WIDE_INT_MAX_PRECISION); (gdb) p precision $2 = 256 (gdb) disass $pc-16,$pc+16 Dump of assembler code from 0xfbc244 to 0xfbc264: 0x00fbc244 <_Z40set_min_and_max_values_for_integral_typeP9tree_nodei6signop+36>: stw r7,-70(sp) 0x00fbc248 <_Z40set_min_and_max_values_for_integral_typeP9tree_nodei6signop+40>: stw r6,-6c(sp) 0x00fbc24c <_Z40set_min_and_max_values_for_integral_typeP9tree_nodei6signop+44>: cmpib,>= 0,r25,0xfbc2d4 <_Z40set_min_and_max_values_for_integral_typeP9tree_nodei6signop+180> 0x00fbc250 <_Z40set_min_and_max_values_for_integral_typeP9tree_nodei6signop+48>: copy r26,r3 => 0x00fbc254 <_Z40set_min_and_max_values_for_integral_typeP9tree_nodei6signop+52>: ldi c0,ret0 0x00fbc258 <_Z40set_min_and_max_values_for_integral_typeP9tree_nodei6signop+56>: cmpb,< ret0,r25,0xfbc2fc <_Z40set_min_and_max_values_for_integral_typeP9tree_nodei6signop+220> 0x00fbc25c <_Z40set_min_and_max_values_for_integral_typeP9tree_nodei6signop+60>: copy r24,r25 0x00fbc260 <_Z40set_min_and_max_values_for_integral_typeP9tree_nodei6signop+64>: ldo -98(sp),r6 End of assembler dump. (gdb) p $ret0 $3 = 8388608 (gdb) p 0xc0 $4 = 192 (gdb) p $r25 $5 = 256 (gdb) bt #0 _Z40set_min_and_max_values_for_integral_typeP9tree_nodei6signop ( type=<incomplete type>, precision=256, sgn=UNSIGNED) at ../../gcc/gcc/stor-layout.c:2851 #1 0x00fc0b9c in _Z18make_unsigned_typei (precision=256) at ../../gcc/gcc/stor-layout.c:2885 #2 0x000da2b4 in _Z18gnat_type_for_sizeji (precision=256, unsignedp=256) at ../../gcc/gcc/ada/gcc-interface/utils.c:3670 #3 0x00b05c2c in gimple_fold_builtin_memory_op(gimple_stmt_iterator*, tree_node*, tree_node*, built_in_function) (v=@0x79aebb68, reserve=256, exact=true) at ../../gcc/gcc/gimple-fold.c:1004 #4 0x00afffac in _ZL11fold_stmt_1P20gimple_stmt_iteratorbPFP9tree_nodeS2_E ( gsi=0x7a001018, inplace=true, valueize=0x79ae8b58) at ../../gcc/gcc/gimple-fold.c:5054 #5 0x00b13668 in _ZL10lower_stmtP20gimple_stmt_iteratorP10lower_data ( gsi=..., data=0x7a000fa4) at ../../gcc/gcc/gimple-low.c:390 #6 0x00b1405c in _ZL17lower_gimple_bindP20gimple_stmt_iteratorP10lower_data ( gsi=0x7a000f98, data=0x7a000fa4) at ../../gcc/gcc/gimple-low.c:217 #7 0x00b146a0 in _ZN12_GLOBAL__N_113pass_lower_cf7executeEP8function ( this=0x79ab92a0) at ../../gcc/gcc/gimple-low.c:110 #8 0x00e8b140 in _Z16execute_one_passP8opt_pass (pass=0x40716078) at ../../gcc/gcc/passes.c:2567 #9 0x00e8ba2c in _ZL19execute_pass_list_1P8opt_pass (pass=0x40716078) at ../../gcc/gcc/passes.c:2656 ---Type <return> to continue, or q <return> to quit--- #10 0x00e8bad0 in _Z17execute_pass_listP8functionP8opt_pass (fn=0x79ab92a0, pass=0x100) at ../../gcc/gcc/passes.c:2667 #11 0x00906578 in _ZN11cgraph_node7analyzeEv (this=<incomplete type>) at ../../gcc/gcc/cgraphunit.c:680 #12 0x009098e0 in _ZL17analyze_functionsb (first_time=148) at ../../gcc/gcc/cgraphunit.c:1234 #13 0x0090a6c8 in _ZN12symbol_table25finalize_compilation_unitEv ( this=0x79c59000) at ../../gcc/gcc/cgraphunit.c:2508 #14 0x00fcd444 in _ZL12compile_filev () at ../../gcc/gcc/toplev.c:483 #15 0x00fd0d5c in _ZN6toplev4mainEiPPc (this=0x7a000a98, argc=0, argv=0x0) at ../../gcc/gcc/toplev.c:2233 #16 0x01461b40 in main (argc=20, argv=0x7a0008f4) at ../../gcc/gcc/main.c:39
