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[PATCH] Fix PR41738 optabs expands rotate using wrong mode
- From: Andy H <hutchinsonandy at aim dot com>
- To: gcc-patches at gcc dot gnu dot org
- Date: Sat, 17 Oct 2009 16:59:40 -0400
- Subject: [PATCH] Fix PR41738 optabs expands rotate using wrong mode
The following patch corrects the mode of the shift count expression
created by expand_binop and fixes PR41738
Tested on 4.5 head Native configuration i686-pc-linux-gnu with no
regressions.
Ok?
2009-10-17 Andy Hutchinson <hutchinsonandy@gcc.gnu.org>
PR middle-end/41738
* optabs.c (expand_binop): Make mode of shift count expression mode
of shift count not target
Remove indent nit.
Index: optabs.c
===================================================================
--- optabs.c (revision 152955)
+++ optabs.c (working copy)
@@ -1595,11 +1595,11 @@
unsigned int bits = GET_MODE_BITSIZE (mode);
if (CONST_INT_P (op1))
- newop1 = GEN_INT (bits - INTVAL (op1));
+ newop1 = GEN_INT (bits - INTVAL (op1));
else if (targetm.shift_truncation_mask (mode) == bits - 1)
- newop1 = negate_rtx (mode, op1);
+ newop1 = negate_rtx (GET_MODE (op1), op1);
else
- newop1 = expand_binop (mode, sub_optab,
+ newop1 = expand_binop (GET_MODE (op1), sub_optab,
GEN_INT (bits), op1,
NULL_RTX, unsignedp, OPTAB_DIRECT);