* Fix for ifc-20040816-2.c test case
@ 2004-10-19 2:51 Ben Elliston
2004-10-19 23:29 ` Richard Henderson
0 siblings, 1 reply; 2+ messages in thread
From: Ben Elliston @ 2004-10-19 2:51 UTC (permalink / raw)
To: gcc-patches
The following patch modifies the ifc-20040816-2.c test to allow the
if-conversion pass to do its thing. The if-conversion was being
inhibited by some floating point expressions, which could trap. I've
converted the test to use integer arithmetic instead. Okay for
mainline?
2004-10-19 Ben Elliston <bje@au.ibm.com>
Devang Patel <dpatel@apple.com>
* gcc.dg/tree-ssa/ifc-20040816-2.c: Use integer arithmetic instead
of floating point arithmetic, which could trap.
--- ifc-20040816-2.c 6 Sep 2004 23:14:43 -0000 1.2
+++ ifc-20040816-2.c 19 Oct 2004 02:08:32 -0000
@@ -1,30 +1,29 @@
/* { dg-do compile } */
/* { dg-options "-c -O2 -ftree-vectorize -fdump-tree-ifcvt-stats" { target *-*-* } } */
-typedef float afloat __attribute__ ((__aligned__(16)));
-void foo(const afloat * __restrict__ zr_in,
- const afloat * __restrict__ zi_in,
- const afloat * __restrict__ zk_in,
- afloat * __restrict__ zr_out,
- afloat * __restrict__ zi_out,
- afloat * __restrict__ zk_out,
- float cr, float ci)
+void foo(const int * __restrict__ zr_in,
+ const int * __restrict__ zi_in,
+ const int * __restrict__ zk_in,
+ int * __restrict__ zr_out,
+ int * __restrict__ zi_out,
+ int * __restrict__ zk_out,
+ int cr, int ci)
{
unsigned int pi;
- float tmp_r, tmp_i, tmp_k;
+ int tmp_r, tmp_i, tmp_k;
for (pi = 0; pi < (512)*(512); pi++) {
- float zr = zr_in[pi];
- float zi = zi_in[pi];
- float zk = zk_in[pi];
+ int zr = zr_in[pi];
+ int zi = zi_in[pi];
+ int zk = zk_in[pi];
- if (zr*zr + zi*zi >= 4.0f) {
+ if (zr*zr + zi*zi >= 4) {
tmp_r = zr;
tmp_i = zi;
tmp_k = zk;
} else {
tmp_r = (zr*zr - zi*zi + cr);
tmp_i = (2 * zr * zi + ci);
- tmp_k = zk + 1.0f;
+ tmp_k = zk + 1;
}
zr_out[pi] = tmp_r;
zi_out[pi] = tmp_i;
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: Fix for ifc-20040816-2.c test case
2004-10-19 2:51 Fix for ifc-20040816-2.c test case Ben Elliston
@ 2004-10-19 23:29 ` Richard Henderson
0 siblings, 0 replies; 2+ messages in thread
From: Richard Henderson @ 2004-10-19 23:29 UTC (permalink / raw)
To: Ben Elliston; +Cc: gcc-patches
On Tue, Oct 19, 2004 at 12:11:12PM +1000, Ben Elliston wrote:
> * gcc.dg/tree-ssa/ifc-20040816-2.c: Use integer arithmetic instead
> of floating point arithmetic, which could trap.
Ok.
r~
^ permalink raw reply [flat|nested] 2+ messages in thread
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