On x32 branch, revision 169022 gave me: [hjl@gnu-6 ilp32-6]$ cat l.i static unsigned char foo[256]; arc4_init(void) { int n; for (n = 0; n < 256; n++) foo[n] = n; } ... Starting program: /export/build/gnu/gcc-x32/build-x86_64-linux/gcc/cc1 -fpreprocessed l.i -quiet -dumpbase l.i -mx32 -mtune=generic -march=x86-64 -auxbase-strip l.s -O -version -fPIC -o l.s GNU C (GCC) version 4.6.0 20110119 (experimental) (x86_64-unknown-linux-gnu) compiled by GNU C version 4.5.1 20100924 (Red Hat 4.5.1-4), GMP version 4.3.2, MPFR version 2.4.2, MPC version 0.8.1 GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096 GNU C (GCC) version 4.6.0 20110119 (experimental) (x86_64-unknown-linux-gnu) compiled by GNU C version 4.5.1 20100924 (Red Hat 4.5.1-4), GMP version 4.3.2, MPFR version 2.4.2, MPC version 0.8.1 GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096 Compiler executable checksum: 907bc1978bdfb9cacc592629d3ab71fe Breakpoint 1, fancy_abort ( file=0x11f1068 "/export/gnu/import/git/gcc-x32/gcc/expr.c", line=3355, function=0x11f2526 "emit_move_insn") at /export/gnu/import/git/gcc-x32/gcc/diagnostic.c:893 893 internal_error ("in %s, at %s:%d", function, trim_filename (file), line); (gdb) bt #0 fancy_abort (file=0x11f1068 "/export/gnu/import/git/gcc-x32/gcc/expr.c", line=3355, function=0x11f2526 "emit_move_insn") at /export/gnu/import/git/gcc-x32/gcc/diagnostic.c:893 #1 0x00000000006f074b in emit_move_insn (x=0x7ffff1af4bc0, y=0x7ffff1af4aa0) at /export/gnu/import/git/gcc-x32/gcc/expr.c:3354 #2 0x0000000000cda2b9 in ix86_legitimize_address (x=0x7ffff1af81f8, oldx=0x7ffff1af81c8, mode=QImode) at /export/gnu/import/git/gcc-x32/gcc/config/i386/i386.c:12952 #3 0x00000000009ed580 in default_addr_space_legitimize_address ( x=0x7ffff1af81f8, oldx=0x7ffff1af81c8, mode=QImode, as=0 '\000') at /export/gnu/import/git/gcc-x32/gcc/targhooks.c:1136 #4 0x00000000006d416b in memory_address_addr_space (mode=QImode, x=0x7ffff1af81f8, as=0 '\000') at /export/gnu/import/git/gcc-x32/gcc/explow.c:457 #5 0x000000000070ba0e in expand_expr_real_1 (exp=0x7ffff1af60a0, target=0x0, tmode=VOIDmode, modifier=EXPAND_WRITE, alt_rtl=0x0) at /export/gnu/import/git/gcc-x32/gcc/expr.c:8645 #6 0x0000000000704be3 in expand_expr_real (exp=0x7ffff1af60a0, target=0x0, tmode=VOIDmode, modifier=EXPAND_WRITE, alt_rtl=0x0) at /export/gnu/import/git/gcc-x32/gcc/expr.c:7214 #7 0x00000000006e7863 in expand_expr (exp=0x7ffff1af60a0, target=0x0, mode=VOIDmode, modifier=EXPAND_WRITE) at /export/gnu/import/git/gcc-x32/gcc/expr.h:422
Author: hjl Date: Wed Jan 19 20:53:14 2011 New Revision: 169029 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=169029 Log: Convert to Pmode if needed in ix86_legitimize_address. gcc/ 2011-01-19 H.J. Lu <hongjiu.lu@intel.com> PR target/47364 * config/i386/i386.c (ix86_legitimize_address): Convert to Pmode if needed. gcc/testsuite/ 2011-01-19 H.J. Lu <hongjiu.lu@intel.com> PR target/47364 * gcc.target/i386/pr47364.c: New. Added: branches/x32/gcc/testsuite/ChangeLog.x32 branches/x32/gcc/testsuite/gcc.target/i386/pr47364.c Modified: branches/x32/gcc/ChangeLog.x32 branches/x32/gcc/config/i386/i386.c
Another one. On x32 branch, revision 169029 gave me: [hjl@gnu-6 ilp32-7]$ cat x.c extern __SIZE_TYPE__ strlen (const char *); void foo (char *, const char *); int bar (const char *prefix) { char buff[256]; foo (buff, prefix); return strlen(buff); } [hjl@gnu-6 ilp32-7]$ make /export/build/gnu/gcc-x32/build-x86_64-linux/gcc/xgcc -B/export/build/gnu/gcc-x32/build-x86_64-linux/gcc/ -S -o x.s -mx32 -O2 x.c x.c: In function ‘bar’: x.c:7:18: internal compiler error: in emit_move_insn, at expr.c:3355 Please submit a full bug report, with preprocessed source if appropriate. See <http://gcc.gnu.org/bugs.html> for instructions. make: *** [x.s] Error 1 [hjl@gnu-6 ilp32-7]$ (gdb) r Starting program: /export/build/gnu/gcc-x32/build-x86_64-linux/gcc/cc1 -fpreprocessed foo.i -quiet -dumpbase foo.i -mx32 -mtune=generic -march=x86-64 -auxbase-strip foo.s -O2 -version -o foo.s GNU C (GCC) version 4.6.0 20110119 (experimental) (x86_64-unknown-linux-gnu) compiled by GNU C version 4.5.1 20100924 (Red Hat 4.5.1-4), GMP version 4.3.2, MPFR version 2.4.2, MPC version 0.8.1 GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096 GNU C (GCC) version 4.6.0 20110119 (experimental) (x86_64-unknown-linux-gnu) compiled by GNU C version 4.5.1 20100924 (Red Hat 4.5.1-4), GMP version 4.3.2, MPFR version 2.4.2, MPC version 0.8.1 GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096 Compiler executable checksum: 2521805caa85b3824657bbc223b7b9f6 Breakpoint 1, fancy_abort ( file=0x11f1128 "/export/gnu/import/git/gcc-x32/gcc/expr.c", line=3355, function=0x11f25e6 "emit_move_insn") at /export/gnu/import/git/gcc-x32/gcc/diagnostic.c:893 893 internal_error ("in %s, at %s:%d", function, trim_filename (file), line); (gdb) bt #0 fancy_abort (file=0x11f1128 "/export/gnu/import/git/gcc-x32/gcc/expr.c", line=3355, function=0x11f25e6 "emit_move_insn") at /export/gnu/import/git/gcc-x32/gcc/diagnostic.c:893 #1 0x00000000006f074b in emit_move_insn (x=0x7ffff1c92fc0, y=0x7ffff1c92d60) at /export/gnu/import/git/gcc-x32/gcc/expr.c:3354 #2 0x0000000000cef39f in ix86_expand_strlen (out=0x7ffff1c92fc0, src=0x7ffff1af01b0, eoschar=0x7ffff1ba3470, align=0x7ffff1ba34f0) at /export/gnu/import/git/gcc-x32/gcc/config/i386/i386.c:21664 #3 0x0000000000ecf575 in gen_strlensi (operand0=0x7ffff1c92fc0, operand1=0x7ffff1af01b0, operand2=0x7ffff1ba3470, operand3=0x7ffff1ba34f0) at /export/gnu/import/git/gcc-x32/gcc/config/i386/i386.md:16173 #4 0x00000000005ae5bd in expand_builtin_strlen (exp=0x7ffff1a985e8, target=0x7ffff1c92fc0, target_mode=SImode) at /export/gnu/import/git/gcc-x32/gcc/builtins.c:3429 #5 0x00000000005bb501 in expand_builtin (exp=0x7ffff1a985e8, target=0x7ffff1c92fc0, subtarget=0x0, mode=SImode, ignore=0) at /export/gnu/import/git/gcc-x32/gcc/builtins.c:6120 #6 0x00000000007102aa in expand_expr_real_1 (exp=0x7ffff1a985e8, target=0x7ffff1c92fc0, tmode=SImode, modifier=EXPAND_NORMAL, alt_rtl=0x7fffffffce00) at /export/gnu/import/git/gcc-x32/gcc/expr.c:9300 #7 0x0000000000704b9e in expand_expr_real (exp=0x7ffff1a985e8, target=0x7ffff1c92fc0, tmode=SImode, modifier=EXPAND_NORMAL, alt_rtl=0x7fffffffce00) at /export/gnu/import/git/gcc-x32/gcc/expr.c:7206 ---Type <return> to continue, or q <return> to quit--- #8 0x00000000006f5eb7 in store_expr (exp=0x7ffff1a985e8, target=0x7ffff1c92fc0, call_param_p=0, nontemporal=0 '\000') at /export/gnu/import/git/gcc-x32/gcc/expr.c:4674 #9 0x00000000006f437b in expand_assignment (to=0x7ffff1aa8160, from=0x7ffff1a985e8, nontemporal=0 '\000') at /export/gnu/import/git/gcc-x32/gcc/expr.c:4447 #10 0x000000000060a896 in expand_call_stmt (stmt=0x7ffff1ba8380) at /export/gnu/import/git/gcc-x32/gcc/cfgexpand.c:1914 #11 0x000000000060a997 in expand_gimple_stmt_1 (stmt=0x7ffff1ba8380) at /export/gnu/import/git/gcc-x32/gcc/cfgexpand.c:1949 #12 0x000000000060b046 in expand_gimple_stmt (stmt=0x7ffff1ba8380) at /export/gnu/import/git/gcc-x32/gcc/cfgexpand.c:2108 #13 0x0000000000611b18 in expand_gimple_basic_block (bb=0x7ffff1a941a0) at /export/gnu/import/git/gcc-x32/gcc/cfgexpand.c:3570 #14 0x00000000006138e1 in gimple_expand_cfg () at /export/gnu/import/git/gcc-x32/gcc/cfgexpand.c:4053 #15 0x00000000008f985f in execute_one_pass (pass=0x17aeda0) at /export/gnu/import/git/gcc-x32/gcc/passes.c:1561 #16 0x00000000008f9a4e in execute_pass_list (pass=0x17aeda0) at /export/gnu/import/git/gcc-x32/gcc/passes.c:1616 #17 0x0000000000a82714 in tree_rest_of_compilation (fndecl=0x7ffff1aa6100) at /export/gnu/import/git/gcc-x32/gcc/tree-optimize.c:422 #18 0x0000000000d228c9 in cgraph_expand_function (node=0x7ffff1aaa000) ---Type <return> to continue, or q <return> to quit--- at /export/gnu/import/git/gcc-x32/gcc/cgraphunit.c:1522 #19 0x0000000000d22a88 in cgraph_expand_all_functions () at /export/gnu/import/git/gcc-x32/gcc/cgraphunit.c:1581 #20 0x0000000000d230bd in cgraph_optimize () at /export/gnu/import/git/gcc-x32/gcc/cgraphunit.c:1841 #21 0x0000000000d20bf0 in cgraph_finalize_compilation_unit () at /export/gnu/import/git/gcc-x32/gcc/cgraphunit.c:1042 #22 0x00000000004aeb60 in c_write_global_declarations () at /export/gnu/import/git/gcc-x32/gcc/c-decl.c:9843 #23 0x00000000009efd3e in compile_file () at /export/gnu/import/git/gcc-x32/gcc/toplev.c:591 #24 0x00000000009f1e39 in do_compile () at /export/gnu/import/git/gcc-x32/gcc/toplev.c:1874 #25 0x00000000009f1f86 in toplev_main (argc=15, argv=0x7fffffffdf08) at /export/gnu/import/git/gcc-x32/gcc/toplev.c:1937 #26 0x0000000000587bf0 in main (argc=15, argv=0x7fffffffdf08) at /export/gnu/import/git/gcc-x32/gcc/main.c:36 (gdb)
Author: hjl Date: Wed Jan 19 21:38:32 2011 New Revision: 169032 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=169032 Log: Properly handle Pmode != ptr_mode when expanding builtin strlen. gcc/ 2011-01-19 H.J. Lu <hongjiu.lu@intel.com> PR target/47364 * builtins.c (expand_builtin_strlen): Convert to Pmode if PAT isn't in Pmode. * config/i386/i386.c (ix86_expand_strlen): Handle GET_MODE (out) != Pmode. gcc/testsuite/ 2011-01-19 H.J. Lu <hongjiu.lu@intel.com> PR target/47364 * gcc.target/i386/pr47364-2.c: New. Added: branches/x32/gcc/testsuite/gcc.target/i386/pr47364-2.c Modified: branches/x32/gcc/ChangeLog.x32 branches/x32/gcc/builtins.c branches/x32/gcc/config/i386/i386.c branches/x32/gcc/testsuite/ChangeLog.x32
*** Bug 47812 has been marked as a duplicate of this bug. ***
Author: hjl Date: Sat Feb 19 14:53:20 2011 New Revision: 170316 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=170316 Log: Properly handle target not in Pmode when expanding strlen. gcc/ 2011-02-19 H.J. Lu <hongjiu.lu@intel.com> PR middle-end/47364 * builtins.c (expand_builtin_strlen): Properly handle target not in Pmode. gcc/testsuite/ 2011-02-19 H.J. Lu <hongjiu.lu@intel.com> PR middle-end/47364 * gcc.dg/torture/pr47364-1.c: New. Added: branches/x32/gcc/testsuite/gcc.dg/torture/pr47364-1.c Modified: branches/x32/gcc/ChangeLog.x32 branches/x32/gcc/builtins.c branches/x32/gcc/config/i386/i386.c branches/x32/gcc/testsuite/ChangeLog.x32
Author: hjl Date: Sat Apr 2 05:45:52 2011 New Revision: 171873 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=171873 Log: Only expand strlen to Pmode. 2011-03-27 H.J. Lu <hongjiu.lu@intel.com> PR middle-end/47364 * config/i386/i386.md (strlen<mode>): Replace SWI48x with P. Modified: branches/x32/gcc/ChangeLog.x32 branches/x32/gcc/config/i386/i386.md
Author: hjl Date: Tue Jun 14 16:31:57 2011 New Revision: 175034 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=175034 Log: Properly expand strlen to Pmode. 2011-06-14 H.J. Lu <hongjiu.lu@intel.com> PR middle-end/47364 * builtins.c (expand_builtin_strlen): Expand strlen to Pmode and properly handle result not in Pmode. Modified: trunk/gcc/ChangeLog trunk/gcc/builtins.c
Author: hjl Date: Tue Jun 14 16:36:12 2011 New Revision: 175035 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=175035 Log: Pass POINTERS_EXTEND_UNSIGNED to convert_to_mode. 2011-06-12 H.J. Lu <hongjiu.lu@intel.com> PR middle-end/47364 * builtins.c (expand_builtin_strlen): Properly handle target not in Pmode if POINTERS_EXTEND_UNSIGNED is defined. Modified: branches/x32/gcc/ChangeLog.x32 branches/x32/gcc/builtins.c
Author: hjl Date: Tue Jun 14 16:36:45 2011 New Revision: 175036 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=175036 Log: Expand strlen to Pmode. 2011-06-14 H.J. Lu <hongjiu.lu@intel.com> PR middle-end/47364 * builtins.c (expand_builtin_strlen): Expand strlen to Pmode. Modified: branches/x32/gcc/ChangeLog.x32 branches/x32/gcc/builtins.c
Author: hjl Date: Thu Jul 28 12:32:23 2011 New Revision: 176868 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=176868 Log: Only expand strlen to Pmode. 2011-07-28 H.J. Lu <hongjiu.lu@intel.com> PR target/47364 * config/i386/i386.md (strlen<mode>): Replace SWI48x with P. Modified: trunk/gcc/ChangeLog trunk/gcc/config/i386/i386.md
Author: hjl Date: Thu Jul 28 12:58:00 2011 New Revision: 176869 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=176869 Log: Only expand strlen to Pmode. 2011-07-28 H.J. Lu <hongjiu.lu@intel.com> Backport from mainline 2011-07-28 H.J. Lu <hongjiu.lu@intel.com> PR target/47364 * config/i386/i386.md (strlen<mode>): Replace SWI48x with P. Modified: branches/gcc-4_6-branch/gcc/ChangeLog branches/gcc-4_6-branch/gcc/config/i386/i386.md
Fixed.
Author: uros Date: Thu Jul 28 16:20:06 2011 New Revision: 176875 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=176875 Log: PR target/47364 * config/i386/i386.md (strlensi): Enable for !TARGET_64BIT only. (strlendi): Enable for TARGET_64BIT only. Modified: branches/gcc-4_5-branch/gcc/ChangeLog branches/gcc-4_5-branch/gcc/config/i386/i386.md
Author: uros Date: Thu Jul 28 16:21:44 2011 New Revision: 176877 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=176877 Log: PR target/47364 * config/i386/i386.md (strlensi): Enable for !TARGET_64BIT only. (strlendi): Enable for TARGET_64BIT only. Modified: branches/gcc-4_4-branch/gcc/ChangeLog branches/gcc-4_4-branch/gcc/config/i386/i386.md
Author: hjl Date: Fri Aug 5 22:05:43 2011 New Revision: 177487 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=177487 Log: Add a testcase for PR middle-end/47364. 2011-08-05 H.J. Lu <hongjiu.lu@intel.com> PR middle-end/47364 * gcc.dg/torture/pr47364-1.c: New. Added: trunk/gcc/testsuite/gcc.target/i386/pr47364-1.c Modified: trunk/gcc/testsuite/ChangeLog