* [PATCH, ARM, libgcc] Enable longlong.h inline assembly for Thumb-2
@ 2012-03-08 3:36 Michael Hope
2012-03-08 9:42 ` Richard Earnshaw
0 siblings, 1 reply; 2+ messages in thread
From: Michael Hope @ 2012-03-08 3:36 UTC (permalink / raw)
To: gcc-patches
Hi there,
This patch enables the ARM inline assembly 64 bit add, subtract, and multiply instructions
in libgcc when compiling for Thumb-2. The existing code enables them for ARM mode as
Thumb-1 is missing the encodings.
OK for 4.8?
-- Michael
ChangeLog:
2012-03-08 Michael Hope <michael.hope@linaro.org>
* longlong.h [ARM] (add_ssaaaa, sub_ddmmss, umul_ppmm): Enable
for Thumb-2.
diff --git a/libgcc/longlong.h b/libgcc/longlong.h
index 1a839dd..987820d 100644
--- a/libgcc/longlong.h
+++ b/libgcc/longlong.h
@@ -203,7 +203,8 @@ do { \
UDItype __umulsidi3 (USItype, USItype);
#endif
-#if defined (__arm__) && !defined (__thumb__) && W_TYPE_SIZE == 32
+#if defined (__arm__) && (defined (__thumb2__) || !defined (__thumb__)) \
+ && W_TYPE_SIZE == 32
#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
__asm__ ("adds %1, %4, %5\n\tadc %0, %2, %3" \
: "=r" ((USItype) (sh)), \
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [PATCH, ARM, libgcc] Enable longlong.h inline assembly for Thumb-2
2012-03-08 3:36 [PATCH, ARM, libgcc] Enable longlong.h inline assembly for Thumb-2 Michael Hope
@ 2012-03-08 9:42 ` Richard Earnshaw
0 siblings, 0 replies; 2+ messages in thread
From: Richard Earnshaw @ 2012-03-08 9:42 UTC (permalink / raw)
To: Michael Hope; +Cc: gcc-patches
On 08/03/12 03:36, Michael Hope wrote:
> Hi there,
>
> This patch enables the ARM inline assembly 64 bit add, subtract, and multiply instructions
> in libgcc when compiling for Thumb-2. The existing code enables them for ARM mode as
> Thumb-1 is missing the encodings.
>
> OK for 4.8?
>
> -- Michael
>
> ChangeLog:
>
> 2012-03-08 Michael Hope <michael.hope@linaro.org>
>
> * longlong.h [ARM] (add_ssaaaa, sub_ddmmss, umul_ppmm): Enable
> for Thumb-2.
>
OK
R.
^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2012-03-08 9:42 UTC | newest]
Thread overview: 2+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2012-03-08 3:36 [PATCH, ARM, libgcc] Enable longlong.h inline assembly for Thumb-2 Michael Hope
2012-03-08 9:42 ` Richard Earnshaw
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).