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The following code causes ICE: # 1 "foo.C" # 1 "<built-in>" # 1 "<command line>" # 1 "foo.C" typedef int v2di __attribute__ ((mode(V2DI))); int main(void) { v2di a; a = __builtin_ia32_psllqi128( a, 1 ); return 0; } > gcc -msse2 foo.C foo.C: In function `int main()': foo.C:7: internal compiler error: in ix86_expand_binop_builtin, at config/i386/i386.c:13029 Please submit a full bug report, with preprocessed source if appropriate. See <URL:http://gcc.gnu.org/bugs.html> for instructions. > gcc -v Reading specs from /staff/kfredrik/local/gcc-snapshot/lib/gcc-lib/i686-pc-linux-gnu/3.3.1/specs Configured with: ../gcc-20030519/configure --prefix=/staff/kfredrik/local/gcc-snapshot --enable-languages=c,c++ Thread model: posix gcc version 3.3.1 20030519 (prerelease) The same thing happens with all optimization levels. An easy fix is to put the constant 1 in a variable: v2di a; int i = 1; a = __builtin_ia32_psllqi128( a, i ); This "fixes" the bug.
Hello, I can confirm that this bug is still present with gcc 3.3 branch and mainline (20030524). Dara
also happens on the mainline (20030526): tin:~/src/gnu/gcctest>gcc pr10984.c -msse2 pr10984.c: In function `main': pr10984.c:7: internal compiler error: in ix86_expand_binop_builtin, at config/i386/i386.c:13707 Please submit a full bug report, with preprocessed source if appropriate. See <URL:http://gcc.gnu.org/bugs.html> for instructions. (gdb) bt #0 0x4202bb8a in exit () from /lib/i686/libc.so.6 #1 0x080f1c8a in diagnostic_action_after_output (context=0x4212dc80, diagnostic=0x83) at / home/gates/pinskia/src/gnu/gcc/src/gcc/diagnostic.c:963 #2 0x080f207c in diagnostic_report_diagnostic (context=0x84330e0, diagnostic=0xbffeba10) at /home/gates/pinskia/src/gnu/gcc/src/gcc/diagnostic.c:1102 #3 0x080f2521 in internal_error (msgid=0x83 <Address 0x83 out of bounds>) at /home/gates/ pinskia/src/gnu/gcc/src/gcc/diagnostic.c:1311 #4 0x080f29ef in fancy_abort (file=0x83 <Address 0x83 out of bounds>, line=1108532352, function=0x83 <Address 0x83 out of bounds>) at /home/gates/pinskia/src/gnu/gcc/src/gcc/ diagnostic.c:1458 #5 0x0832901c in ix86_expand_binop_builtin (icode=CODE_FOR_ashlv2di3, arglist=0x83, target=0x40096a30) at /home/gates/pinskia/src/gnu/gcc/src/gcc/config/i386/i386.c:13707 #6 0x080c678e in expand_builtin (exp=0x400552b8, target=0x0, subtarget=0x0, mode=VOIDmode, ignore=0) at /home/gates/pinskia/src/gnu/gcc/src/gcc/builtins.c:4306 #7 0x08140d6c in expand_expr (exp=0x400552b8, target=0x0, tmode=VOIDmode, modifier=EXPAND_NORMAL) at /home/gates/pinskia/src/gnu/gcc/src/gcc/expr.c:7832 #8 0x0812ed00 in expand_assignment (to=0x0, from=0x400552b8, want_value=0, suggest_reg=1) at /home/gates/pinskia/src/gnu/gcc/src/gcc/expr.c:4248 #9 0x08139de7 in expand_expr (exp=0x400552d0, target=0x0, tmode=VOIDmode, modifier=EXPAND_NORMAL) at /home/gates/pinskia/src/gnu/gcc/src/gcc/expr.c:9148 #10 0x082cd4b7 in expand_expr_stmt_value (exp=0x4004b210, want_value=1074404952, maybe_last=-1) at /home/gates/pinskia/src/gnu/gcc/src/gcc/stmt.c:2215 #11 0x0809ccb3 in genrtl_expr_stmt_value (expr=0x400552d0, want_value=0, maybe_last=0) at /home/gates/pinskia/src/gnu/gcc/src/gcc/c-semantics.c:367 #12 0x0809ee6f in expand_stmt (t=0x400552d0) at /home/gates/pinskia/src/gnu/gcc/src/gcc/ c-semantics.c:831 #13 0x0809e940 in genrtl_compound_stmt (t=0x4008a190) at /home/gates/pinskia/src/gnu/ gcc/src/gcc/c-semantics.c:743 #14 0x0809ee7c in expand_stmt (t=0x4008a190) at /home/gates/pinskia/src/gnu/gcc/src/gcc/ c-semantics.c:858 #15 0x0806b9bb in c_expand_body_1 (fndecl=0x400a1d14, nested_p=0) at /home/gates/ pinskia/src/gnu/gcc/src/gcc/c-decl.c:6482 #16 0x0806bf39 in c_expand_body (fndecl=0x83) at /home/gates/pinskia/src/gnu/gcc/src/gcc/ c-decl.c:6587 #17 0x0806b50b in finish_function (nested=0, can_defer_p=1) at /home/gates/pinskia/src/gnu/ gcc/src/gcc/c-decl.c:6370 #18 0x0804c683 in yyparse () at c-parse.y:407 #19 0x08097986 in c_common_parse_file (set_yydebug=131) at /home/gates/pinskia/src/gnu/ gcc/src/gcc/c-opts.c:1644 #20 0x082ddd7a in compile_file () at /home/gates/pinskia/src/gnu/gcc/src/gcc/toplev.c:2209 #21 0x082e3938 in do_compile () at /home/gates/pinskia/src/gnu/gcc/src/gcc/toplev.c:5581 #22 0x082e39a9 in toplev_main (argc=131, argv=0x0) at /home/gates/pinskia/src/gnu/gcc/src/ gcc/toplev.c:5612 #23 0x080b6e3b in main (argc=131, argv=0x83) at /home/gates/pinskia/src/gnu/gcc/src/gcc/ main.c:37 (gdb) up 5 #5 0x0832901c in ix86_expand_binop_builtin (icode=CODE_FOR_ashlv2di3, arglist=0x83, target=0x40096a30) at /home/gates/pinskia/src/gnu/gcc/src/gcc/config/i386/i386.c:13707 13707 abort (); (gdb) l 13702 } 13703 13704 /* In case the insn wants input operands in modes different from 13705 the result, abort. */ 13706 if (GET_MODE (op0) != mode0 || GET_MODE (op1) != mode1) 13707 abort (); 13708 13709 if (! (*insn_data[icode].operand[1].predicate) (op0, mode0)) 13710 op0 = copy_to_mode_reg (mode0, op0); 13711 if (! (*insn_data[icode].operand[2].predicate) (op1, mode1)) (gdb) p debug_rtx(op0) (mem/f:V2DI (plus:SI (reg/f:SI 54 virtual-stack-vars) (const_int -16 [0xfffffff0])) [0 a+0 S16 A128]) $1 = void (gdb) p debug_rtx(op1) (??? bad code 56848 ) $2 = void (gdb) p mode0 $3 = V2DImode (gdb) p op1 $4 = 0xbffeba10 (gdb) p op0 $5 = 0x40087cc0 (gdb) p mode1 $6 = TImode
*** Bug 8600 has been marked as a duplicate of this bug. ***
*** Bug 7204 has been marked as a duplicate of this bug. ***
*** Bug 11056 has been marked as a duplicate of this bug. ***
*** Bug 11057 has been marked as a duplicate of this bug. ***
*** Bug 11213 has been marked as a duplicate of this bug. ***
*** Bug 11549 has been marked as a duplicate of this bug. ***
*** Bug 11647 has been marked as a duplicate of this bug. ***
Subject: Bug 10984 CVSROOT: /cvs/gcc Module name: gcc Changes by: hubicka@gcc.gnu.org 2003-08-23 21:18:58 Modified files: gcc : expr.c ChangeLog gcc/config/i386: i386.c i386.h i386.md Log message: PR target/11369 * i386.c (ix86_expand_carry_flag_compare): Validate operand. PR target/11031 * i386.c (const_0_to_3_operand, const_0_to_7_operand, const_0_to_15_operand, const_0_to_255_operand): New predicates. * i386.h (PREDICATE_CODES): Add these. * i386.c (pinsrw and pextrw patterns): Use them. PR target/10984 * i386.c (ix86_expand_binop_builtin): Behave sanely for VOIDmodes. PR target/8869 * expr.c (convert_modes): Deal properly with integer to vector constant conversion. PR target/8871 * i386.md (zero_extendsidi2*): Add MMX and SSE alternatives. Patches: http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/expr.c.diff?cvsroot=gcc&r1=1.577&r2=1.578 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.864&r2=2.865 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/config/i386/i386.c.diff?cvsroot=gcc&r1=1.595&r2=1.596 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/config/i386/i386.h.diff?cvsroot=gcc&r1=1.350&r2=1.351 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/config/i386/i386.md.diff?cvsroot=gcc&r1=1.480&r2=1.481
Fixed on the mainline by a patch by Jan.