[RTL]--emit lib call got error

[王 逸 <cnnjuwy at hotmail dot com>]

Hi, I'm trying to patch GCC 3.4.0 and I've successfully emit a lib call in every compiled function.
using the following statement:

emit_library_call(gen_rtx(SYMBOL_REF, Pmode, "my_function"), LCT_NORMAL, SImode, 0);
//my_function is defined in a shared object

But when I modified the above statement to

emit_library_call(gen_rtx(SYMBOL_REF, Pmode, "my_function_1"), LCT_NORMAL, SImode, 1, GEN_INT(0), SImode);

trying to pass an argument(integer 0) to the emitted lib call, I got some error.
Then I debuged cc1, it seemed that the passed argument was not what I expected.
I wonder how this happen, would anybody give me some advice?

WangYi

My debug message:(I think the bt #6 emit_lib_call_value_1 should be noticed, it looked like the arguments passed is messed.)
$ gdb cc1 
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This GDB was configured as "i386-linux"...
Breakpoint 1 at 0x80be4c2: file /home/ups/src/gcc-3.4.0-patched/gcc/diagnostic.c, line 584.
Breakpoint 2 at 0x8049820
Breakpoint 3 at 0x80495d0
(gdb) run -dr /home/ups/a.c
Starting program: /home/ups/build/gcc-3.4.0-patched/gcc/cc1 -dr /home/ups/a.c
Breakpoint 2 at 0x40051930
Breakpoint 3 at 0x400505a0
 a
 main
//program halted here and I pressed ctrl+c

Program received signal SIGINT, Interrupt.
0x08231ed2 in ggc_alloc (size=1226062116) at /home/ups/src/gcc-3.4.0-patched/gcc/ggc-page.c:1205
1205    }
(gdb) bt
#0  0x08231ed2 in ggc_alloc (size=1226062116) at /home/ups/src/gcc-3.4.0-patched/gcc/ggc-page.c:1205
During symbol reading, Incomplete CFI data; unspecified registers at 0x08231da2.
During symbol reading, Incomplete CFI data; unspecified registers at 0x08231da2.
During symbol reading, Incomplete CFI data; unspecified registers at 0x08231da2.
During symbol reading, Incomplete CFI data; unspecified registers at 0x08231da2.
#1  0x0811e6f1 in gen_rtx_fmt_ee (code=PLUS, mode=V16QImode, arg0=0x23, arg1=0x23) at genrtl.c:33
During symbol reading, Incomplete CFI data; unspecified registers at 0x0811e6ec.
During symbol reading, Incomplete CFI data; unspecified registers at 0x0811e6ec.
During symbol reading, Incomplete CFI data; unspecified registers at 0x0811e6ec.
During symbol reading, Incomplete CFI data; unspecified registers at 0x0811e6ec.
During symbol reading, Incomplete CFI data; unspecified registers at 0x0811e6ec.
During symbol reading, Incomplete CFI data; unspecified registers at 0x0811e6ec.
#2  0x0823c1a9 in ix86_expand_binary_operator (code=PLUS, mode=SImode, operands=0xbfffdf80)
    at /home/ups/src/gcc-3.4.0-patched/gcc/config/i386/i386.c:8484
During symbol reading, Incomplete CFI data; unspecified registers at 0x0823c1f2.
During symbol reading, Incomplete CFI data; unspecified registers at 0x0823c1f2.
During symbol reading, Incomplete CFI data; unspecified registers at 0x0823c1f2.
During symbol reading, Incomplete CFI data; unspecified registers at 0x0823c1f2.
#3  0x0815aed0 in gen_addsi3 (operand0=0x49143924, operand1=0x49143924, operand2=0x49143924) at insn-emit.c:9102
During symbol reading, Incomplete CFI data; unspecified registers at 0x0815aed0.
During symbol reading, Incomplete CFI data; unspecified registers at 0x0815aed0.
During symbol reading, Incomplete CFI data; unspecified registers at 0x0815aed0.
During symbol reading, Incomplete CFI data; unspecified registers at 0x0815aed0.
During symbol reading, Incomplete CFI data; unspecified registers at 0x0815aed0.
During symbol reading, Incomplete CFI data; unspecified registers at 0x0815aed0.
#4  0x081b7f98 in expand_binop (mode=SImode, binoptab=0x40347400, op0=0x4033f000, op1=0x4033e290, target=0x4033f000, 
    unsignedp=0, methods=OPTAB_LIB_WIDEN) at /home/ups/src/gcc-3.4.0-patched/gcc/optabs.c:807
#5  0x080de7aa in adjust_stack (adjust=0x903) at /home/ups/src/gcc-3.4.0-patched/gcc/explow.c:813
#6  0x0809ef21 in emit_library_call_value_1 (retval=0, orgfun=0x491425a0, value=0x0, fn_type=1226073424, outmode=VOIDmode, 
    nargs=1, p=0xbfffe298 "糕?A<\021\b?8@<Y=\b?\024I\230?@\230?@\025")
    at /home/ups/src/gcc-3.4.0-patched/gcc/calls.c:4251
#7  0x0809f7d3 in emit_library_call (orgfun=0x491425a0, fn_type=LCT_NORMAL, outmode=VOIDmode, nargs=1)
    at /home/ups/src/gcc-3.4.0-patched/gcc/calls.c:4416
#8  0x08113c92 in myfunction () at /home/ups/src/gcc-3.4.0-patched/gcc/function.c:6861
#9  0x0824b638 in tree_rest_of_compilation (fndecl=0x4040d798, nested_p=false)
    at /home/ups/src/gcc-3.4.0-patched/gcc/tree-optimize.c:147
#10 0x080581e4 in c_expand_body_1 (fndecl=0x4040d798, nested_p=0) at /home/ups/src/gcc-3.4.0-patched/gcc/c-decl.c:6153
#11 0x080582f7 in c_expand_body (fndecl=0x23) at /home/ups/src/gcc-3.4.0-patched/gcc/c-decl.c:6185
#12 0x0824cd4d in cgraph_expand_function (node=0x4040d9b4) at /home/ups/src/gcc-3.4.0-patched/gcc/cgraphunit.c:533
#13 0x0824c58d in cgraph_assemble_pending_functions () at /home/ups/src/gcc-3.4.0-patched/gcc/cgraphunit.c:143
#14 0x0824c6a9 in cgraph_finalize_function (decl=0x4040d798, nested=false)
    at /home/ups/src/gcc-3.4.0-patched/gcc/cgraphunit.c:224
#15 0x08058035 in finish_function () at /home/ups/src/gcc-3.4.0-patched/gcc/c-decl.c:6110
#16 0x0804a147 in yyparse () at c-parse.y:411
#17 0x0804c8e3 in c_parse_file () at c-parse.y:3028
#18 0x080764f8 in c_common_parse_file (set_yydebug=1226062116) at /home/ups/src/gcc-3.4.0-patched/gcc/c-opts.c:1237
#19 0x08218bba in compile_file () at /home/ups/src/gcc-3.4.0-patched/gcc/toplev.c:1822
#20 0x0821ca28 in do_compile () at /home/ups/src/gcc-3.4.0-patched/gcc/toplev.c:4650
#21 0x0821cb01 in toplev_main (argc=3, argv=0xbfffecf4) at /home/ups/src/gcc-3.4.0-patched/gcc/toplev.c:4690
#22 0x0808ca93 in main (argc=3, argv=0xbfffecf4) at /home/ups/src/gcc-3.4.0-patched/gcc/main.c:35
(gdb)