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Fix IA-64 glibc ICE PR target/13132

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Fix IA-64 glibc ICE
	PR target/13132
	* expmed.c (extract_bit_field): Only call mode_for_size for scalar
	integer modes.

From-SVN: r74443
This commit is contained in:
James E Wilson 2003-12-08 22:39:51 +00:00 committed by Jim Wilson
parent 8bb1e63ec7
commit 367d6d0bd7
2 changed files with 15 additions and 4 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2003-12-08 James E Wilson <wilson@specifixinc.com>
PR target/13132
* expmed.c (extract_bit_field): Only call mode_for_size for scalar
integer modes.
2003-12-08 Nathanael Nerode <neroden@gcc.gnu.org>
* doc/install.texi: Revert change of Dec 7; gcc is still a 2.13

13
gcc/expmed.c
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@ -1079,13 +1079,18 @@ extract_bit_field (rtx str_rtx, unsigned HOST_WIDE_INT bitsize,
If that's wrong, the solution is to test for it and set TARGET to 0
if needed. */
mode1 = (VECTOR_MODE_P (tmode)
? mode
: mode_for_size (bitsize, GET_MODE_CLASS (tmode), 0));
/* Only scalar integer modes can be converted via subregs. There is an
additional problem for FP modes here in that they can have a precision
which is different from the size. mode_for_size uses precision, but
we want a mode based on the size, so we must avoid calling it for FP
modes. */
mode1 = (SCALAR_INT_MODE_P (tmode)
? mode_for_size (bitsize, GET_MODE_CLASS (tmode), 0)
: mode);
if (((bitsize >= BITS_PER_WORD && bitsize == GET_MODE_BITSIZE (mode)
&& bitpos % BITS_PER_WORD == 0)
|| (mode_for_size (bitsize, GET_MODE_CLASS (tmode), 0) != BLKmode
|| (mode1 != BLKmode
/* ??? The big endian test here is wrong. This is correct
if the value is in a register, and if mode_for_size is not
the same mode as op0. This causes us to get unnecessarily