Hello!

> This patch fixes an obvious problem: the fma4_fmsubadd/fma4_fmaddsub
> instruction templates don't generate vfmsubaddpd/vfmaddsubpd because
> they don't use <ssemodesuffix>
>
> This passes bootstrap on x86_64 on trunk.  Okay to commit?

See comments in the code.

> BTW, I'm testing on gcc-4_6-branch.  Should I post a different patch
> thread, or just use this one?

No, the patch is clear and simple enough, you don't need to post it twice.

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 3625d9b..e86ea4e 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2011-05-17  Harsha Jagasia  <harsha.jaga...@amd.com>
+
+       * config/i386/sse.md (fma4_fmsubadd): Use <ssemodesuffix>.
+       (fma4_fmaddsub): Likewise
+
 2011-05-17  Richard Guenther  <rguent...@suse.de>

ChangeLog should be included in the message body, not in the patch.
Please see [1] for details.

        * gimple.c (iterative_hash_gimple_type): Simplify singleton
diff --git a/gcc/config/i386/sse.md b/gcc/config/i386/sse.md
index 291bffb..7c4e6dd 100644
--- a/gcc/config/i386/sse.md
+++ b/gcc/config/i386/sse.md
@@ -1663,7 +1663,7 @@
           (match_operand:VF 3 "nonimmediate_operand" "xm,x")]
          UNSPEC_FMADDSUB))]
   "TARGET_FMA4"
-  "vfmaddsubps\t{%3, %2, %1, %0|%0, %1, %2, %3}"
+  "vfmaddsubp<ssemodesuffix>\t{%3, %2, %1, %0|%0, %1, %2, %3}"
   [(set_attr "type" "ssemuladd")
    (set_attr "mode" "<MODE>")])

No, <ssemodesuffix> mode attribute resolves to ps and pd for VF mode
iterator, so "vfmaddsub<ssemodesuffix>".

@@ -1676,7 +1676,7 @@
             (match_operand:VF 3 "nonimmediate_operand" "xm,x"))]
          UNSPEC_FMADDSUB))]
   "TARGET_FMA4"
-  "vfmsubaddps\t{%3, %2, %1, %0|%0, %1, %2, %3}"
+  "vfmsubaddp<ssemodesuffix>\t{%3, %2, %1, %0|%0, %1, %2, %3}"
   [(set_attr "type" "ssemuladd")
    (set_attr "mode" "<MODE>")])

Same here.

OK everywhere with these two changes.

[1] http://gcc.gnu.org/contribute.html.

Thanks,
Uros.

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