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combine.c (make_extraction): Remove dead wanted_inner_mode- and pos_rtx-related code.

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gcc/
	* combine.c (make_extraction): Remove dead wanted_inner_mode-
	and pos_rtx-related code.

From-SVN: r193025
This commit is contained in:
Richard Sandiford 2012-10-31 08:01:14 +00:00 committed by Richard Sandiford
parent 17a73ba049
commit 8e2326a23b
2 changed files with 5 additions and 15 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2012-10-31 Richard Sandiford <rdsandiford@googlemail.com>
* combine.c (make_extraction): Remove dead wanted_inner_mode-
and pos_rtx-related code.
2012-10-31 Richard Sandiford <rdsandiford@googlemail.com>
* expmed.c (store_bit_field_1): Move generation of MEM insvs

15
gcc/combine.c
View File

@ -7211,10 +7211,6 @@ make_extraction (enum machine_mode mode, rtx inner, HOST_WIDE_INT pos,
&& GET_MODE_SIZE (extraction_mode) < GET_MODE_SIZE (mode))
extraction_mode = mode;
if (pos_rtx && GET_MODE (pos_rtx) != VOIDmode
&& GET_MODE_SIZE (pos_mode) < GET_MODE_SIZE (GET_MODE (pos_rtx)))
pos_mode = GET_MODE (pos_rtx);
/* If this is not from memory, the desired mode is the preferred mode
for an extraction pattern's first input operand, or word_mode if there
is none. */
@ -7231,14 +7227,6 @@ make_extraction (enum machine_mode mode, rtx inner, HOST_WIDE_INT pos,
wanted_inner_mode = GET_MODE_WIDER_MODE (wanted_inner_mode);
gcc_assert (wanted_inner_mode != VOIDmode);
}
/* If we have to change the mode of memory and cannot, the desired mode
is EXTRACTION_MODE. */
if (inner_mode != wanted_inner_mode
&& (mode_dependent_address_p (XEXP (inner, 0), MEM_ADDR_SPACE (inner))
|| MEM_VOLATILE_P (inner)
|| pos_rtx))
wanted_inner_mode = extraction_mode;
}
orig_pos = pos;
@ -7359,9 +7347,6 @@ make_extraction (enum machine_mode mode, rtx inner, HOST_WIDE_INT pos,
}
pos_rtx = temp;
}
else if (pos_rtx != 0
&& GET_MODE_SIZE (pos_mode) < GET_MODE_SIZE (GET_MODE (pos_rtx)))
pos_rtx = gen_lowpart (pos_mode, pos_rtx);
/* Make POS_RTX unless we already have it and it is correct. If we don't
have a POS_RTX but we do have an ORIG_POS_RTX, the latter must