[coreboot] [commit] r5212 - trunk/util/romcc
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svn at coreboot.org
Mon Mar 15 11:33:00 CET 2010
Author: oxygene
Date: Mon Mar 15 11:32:59 2010
New Revision: 5212
URL: https://tracker.coreboot.org/trac/coreboot/changeset/5212
Log:
Use copy_triple only on non-flattened nodes.
Signed-off-by: Patrick Georgi <patrick.georgi at coresystems.de>
Acked-by: Stefan Reinauer <stepan at coresystems.de>
Modified:
trunk/util/romcc/romcc.c
Modified: trunk/util/romcc/romcc.c
==============================================================================
--- trunk/util/romcc/romcc.c Mon Mar 15 11:04:06 2010 (r5211)
+++ trunk/util/romcc/romcc.c Mon Mar 15 11:32:59 2010 (r5212)
@@ -11557,7 +11557,7 @@
static struct triple *assignment_expr(struct compile_state *state)
{
- struct triple *def, *left, *right;
+ struct triple *def, *left, *left2, *right;
int tok, op, sign;
/* The C grammer in K&R shows assignment expressions
* only taking unary expressions as input on their
@@ -11578,6 +11578,9 @@
*/
def = conditional_expr(state);
left = def;
+ left2 = left;
+ if (!(left2->id & TRIPLE_FLAG_FLATTENED))
+ left2 = copy_triple(state, left2);
switch((tok = peek(state))) {
case TOK_EQ:
lvalue(state, left);
@@ -11603,19 +11606,19 @@
}
def = write_expr(state, left,
triple(state, op, left->type,
- read_expr(state, copy_triple(state, left)), right));
+ read_expr(state, left2), right));
break;
case TOK_PLUSEQ:
lvalue(state, left);
eat(state, TOK_PLUSEQ);
def = write_expr(state, left,
- mk_add_expr(state, copy_triple(state, left), assignment_expr(state)));
+ mk_add_expr(state, left2, assignment_expr(state)));
break;
case TOK_MINUSEQ:
lvalue(state, left);
eat(state, TOK_MINUSEQ);
def = write_expr(state, left,
- mk_sub_expr(state, copy_triple(state, left), assignment_expr(state)));
+ mk_sub_expr(state, left2, assignment_expr(state)));
break;
case TOK_SLEQ:
case TOK_SREQ:
@@ -11639,7 +11642,7 @@
}
def = write_expr(state, left,
triple(state, op, left->type,
- read_expr(state, copy_triple(state,left)), right));
+ read_expr(state, left2), right));
break;
}
return def;
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