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stor-layout.c (compute_record_type): Don't use mode of single field as mode of record if not integer mode of same type.

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* stor-layout.c (compute_record_type): Don't use mode of single
	field as mode of record if not integer mode of same type.

From-SVN: r35796
This commit is contained in:
Richard Kenner 2000-08-18 20:52:28 +00:00 committed by Richard Kenner
parent 26db254445
commit 7d2950e523
2 changed files with 8 additions and 4 deletions
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5
gcc/ChangeLog
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@ -6,13 +6,14 @@ Fri Aug 18 16:22:20 2000 Alexandre Oliva <aoliva@redhat.com>
* configure.in: Get them included with `tm_file's.
* configure: Rebuilt.
Fri Aug 18 16:01:18 2000 Alexandre Oliva <aoliva@redhat.com>
* config/sh/sh.md (fpu_switch0, fpu_switch1): Simplify.
* config/sh/sh.c (fpscr_set_from_mem): Use them.
Fri Aug 18 14:23:18 2000 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
* stor-layout.c (compute_record_type): Don't use mode of single
field as mode of record if not integer mode of same type.
* regmove.c (perhaps_ends_bb_p): New function.
(optimize_reg_copy_1, optimize_reg_copy_2): Call it.
(optimize_reg_copy_3, fixup_match_2, regmove_optimize): Likewise.

7
gcc/stor-layout.c
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@ -1062,8 +1062,11 @@ compute_record_mode (type)
/* If this field is the whole struct, remember its mode so
that, say, we can put a double in a class into a DF
register instead of forcing it to live in the stack. */
if (field == TYPE_FIELDS (type) && TREE_CHAIN (field) == 0)
register instead of forcing it to live in the stack. However,
we don't support using such a mode if there is no integer mode
of the same size, so don't set it here. */
if (field == TYPE_FIELDS (type) && TREE_CHAIN (field) == 0
&& int_mode_for_mode (DECL_MODE (field)) != BLKmode)
mode = DECL_MODE (field);
#ifdef STRUCT_FORCE_BLK