fix rtl-opt/21102
Richard Henderson
rth@redhat.com
Sat Apr 23 19:36:00 GMT 2005
Below this test, we use add_double and immed_const_double. Obviously
this only works on scalars, and not vectors or complex modes.
Applied 4.0 and mainline.
r~
PR rtl-opt/21102
* simplify-rtx.c (simplify_binary_operation): Fix mode check before
performing some integral scalar simplifications.
Index: simplify-rtx.c
===================================================================
RCS file: /cvs/gcc/gcc/gcc/simplify-rtx.c,v
retrieving revision 1.230.2.3
diff -u -p -d -r1.230.2.3 simplify-rtx.c
--- simplify-rtx.c 7 Apr 2005 08:25:36 -0000 1.230.2.3
+++ simplify-rtx.c 23 Apr 2005 19:07:14 -0000
@@ -1549,7 +1549,7 @@ simplify_binary_operation (enum rtx_code
have X (if C is 2 in the example above). But don't make
something more expensive than we had before. */
- if (! FLOAT_MODE_P (mode))
+ if (SCALAR_INT_MODE_P (mode))
{
HOST_WIDE_INT coeff0h = 0, coeff1h = 0;
unsigned HOST_WIDE_INT coeff0l = 1, coeff1l = 1;
@@ -1720,7 +1720,7 @@ simplify_binary_operation (enum rtx_code
have X (if C is 2 in the example above). But don't make
something more expensive than we had before. */
- if (! FLOAT_MODE_P (mode))
+ if (SCALAR_INT_MODE_P (mode))
{
HOST_WIDE_INT coeff0h = 0, negcoeff1h = -1;
unsigned HOST_WIDE_INT coeff0l = 1, negcoeff1l = -1;
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