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re PR rtl-optimization/24683 (ICE in in extract_insn, at recog.c:2084)

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./:	PR rtl-optimization/24683
	* config/i386/i386.c (legitimize_pic_address): If constant operand
	to PLUS is too large, put it in a register.
testsuite/:
	PR rtl-optimization/24683
	* gcc.dg/pr24683.c: New test.

From-SVN: r106601
This commit is contained in:
Ian Lance Taylor 2005-11-07 18:52:24 +00:00 committed by Ian Lance Taylor
parent 6afdc7412b
commit a7297856af
4 changed files with 27 additions and 1 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2005-11-07 Ian Lance Taylor <ian@airs.com>
PR rtl-optimization/24683
* config/i386/i386.c (legitimize_pic_address): If constant operand
to PLUS is too large, put it in a register.
2005-11-07 Jie Zhang <jie.zhang@analog.com>
* configure.ac: Enable checking assembler dwarf2 support for bfin

6
gcc/config/i386/i386.c
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@ -6178,7 +6178,11 @@ legitimize_pic_address (rtx orig, rtx reg)
{
if (INTVAL (op1) < -16*1024*1024
|| INTVAL (op1) >= 16*1024*1024)
new = gen_rtx_PLUS (Pmode, force_reg (Pmode, op0), op1);
{
if (!x86_64_immediate_operand (op1, Pmode))
op1 = force_reg (Pmode, op1);
new = gen_rtx_PLUS (Pmode, force_reg (Pmode, op0), op1);
}
}
}
else

5
gcc/testsuite/ChangeLog
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@ -1,3 +1,8 @@
2005-11-07 Ian Lance Taylor <ian@airs.com>
PR rtl-optimization/24683
* gcc.dg/pr24683.c: New test.
2005-11-07 Uros Bizjak <uros@kss-loka.si>
* gcc.dg/vect/pr24225.c: Add cleanup-coverage-files.

11
gcc/testsuite/gcc.dg/pr24683.c Normal file
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@ -0,0 +1,11 @@
/* { dg-do compile { target fpic } } */
/* { dg-options "-O2 -fPIC" } */
int *block;
void final(unsigned int j)
{
unsigned int i;
unsigned char *data = (unsigned char *)"\0";
for (i = 0; i < 8; i++)
for (; j + 63 < 1; j += 64)
block = (int *) &data[j];
}