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mips.h (enum reg_class): Add FRAME_REGS.

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* config/mips/mips.h (enum reg_class): Add FRAME_REGS.
	(REG_CLASS_NAMES): Update.
	(REG_CLASS_CONTENTS): Update.
	* config/mips/mips.c (mips_regno_to_class): Use FRAME_REGS instead
	of ALL_REGS for regs 77 and 78.
	* function.c (instantiate_virtual_regs_in_insn): Assert that
	return value of simplify_gen_subreg is not NULL.

testsuite:
	* gcc.c-torture/compile/20080903-1.c: New test.

From-SVN: r140035
This commit is contained in:
Joseph Myers 2008-09-05 16:39:40 +01:00 committed by Joseph Myers
parent ebac6d9cb9
commit 7314c7dd62
6 changed files with 32 additions and 2 deletions
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10
gcc/ChangeLog
View File

@ -1,3 +1,13 @@
2008-09-05 Joseph Myers <joseph@codesourcery.com>
* config/mips/mips.h (enum reg_class): Add FRAME_REGS.
(REG_CLASS_NAMES): Update.
(REG_CLASS_CONTENTS): Update.
* config/mips/mips.c (mips_regno_to_class): Use FRAME_REGS instead
of ALL_REGS for regs 77 and 78.
* function.c (instantiate_virtual_regs_in_insn): Assert that
return value of simplify_gen_subreg is not NULL.
2008-09-05 Paolo Bonzini <bonzini@gnu.org>
* emit-rtl.c (gen_rtvec): Rewrite not using gen_rtvec_v.

2
gcc/config/mips/mips.c
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@ -502,7 +502,7 @@ const enum reg_class mips_regno_to_class[FIRST_PSEUDO_REGISTER] = {
MD0_REG, MD1_REG, NO_REGS, ST_REGS,
ST_REGS, ST_REGS, ST_REGS, ST_REGS,
ST_REGS, ST_REGS, ST_REGS, NO_REGS,
NO_REGS, ALL_REGS, ALL_REGS, NO_REGS,
NO_REGS, FRAME_REGS, FRAME_REGS, NO_REGS,
COP0_REGS, COP0_REGS, COP0_REGS, COP0_REGS,
COP0_REGS, COP0_REGS, COP0_REGS, COP0_REGS,
COP0_REGS, COP0_REGS, COP0_REGS, COP0_REGS,

5
gcc/config/mips/mips.h
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@ -1791,6 +1791,7 @@ enum reg_class
ST_REGS, /* status registers (fp status) */
DSP_ACC_REGS, /* DSP accumulator registers */
ACC_REGS, /* Hi/Lo and DSP accumulator registers */
FRAME_REGS, /* $arg and $frame */
ALL_REGS, /* all registers */
LIM_REG_CLASSES /* max value + 1 */
};
@ -1832,6 +1833,7 @@ enum reg_class
"ST_REGS", \
"DSP_ACC_REGS", \
"ACC_REGS", \
"FRAME_REGS", \
"ALL_REGS" \
}
@ -1874,7 +1876,8 @@ enum reg_class
{ 0x00000000, 0x00000000, 0x000007f8, 0x00000000, 0x00000000, 0x00000000 }, /* status registers */ \
{ 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x003f0000 }, /* dsp accumulator registers */ \
{ 0x00000000, 0x00000000, 0x00000003, 0x00000000, 0x00000000, 0x003f0000 }, /* hi/lo and dsp accumulator registers */ \
{ 0xffffffff, 0xffffffff, 0xffff07ff, 0xffffffff, 0xffffffff, 0x0fffffff } /* all registers */ \
{ 0x00000000, 0x00000000, 0x00006000, 0x00000000, 0x00000000, 0x00000000 }, /* frame registers */ \
{ 0xffffffff, 0xffffffff, 0xffff67ff, 0xffffffff, 0xffffffff, 0x0fffffff } /* all registers */ \
}

1
gcc/function.c
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@ -1515,6 +1515,7 @@ instantiate_virtual_regs_in_insn (rtx insn)
}
x = simplify_gen_subreg (recog_data.operand_mode[i], new_rtx,
GET_MODE (new_rtx), SUBREG_BYTE (x));
gcc_assert (x);
break;
default:

4
gcc/testsuite/ChangeLog
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@ -1,3 +1,7 @@
2008-09-05 Joseph Myers <joseph@codesourcery.com>
* gcc.c-torture/compile/20080903-1.c: New test.
2008-09-05 Daniel Kraft <d@domob.eu>
PR fortran/36746

12
gcc/testsuite/gcc.c-torture/compile/20080903-1.c Normal file
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@ -0,0 +1,12 @@
struct bar { unsigned short length; };
int
dummy(void)
{
char c[4096];
struct bar *a;
struct bar *b;
a->length = ((char *) b - c);
return 0;
}