> -----Original Message-----
> From: Jeff Law [mailto:l...@redhat.com]
> Sent: Thursday, November 28, 2013 12:43 AM
> To: Zhenqiang Chen; gcc-patches@gcc.gnu.org
> Cc: Ramana Radhakrishnan; Richard Earnshaw
> Subject: Re: [PING] [PATCH, ARM, testcase] Skip target arm-neon for
> lp1243022.c
>
> On 11/27/13 02:05, Zhenqiang Chen wrote:
> > Ping?
> Thanks for including the actual patch you're pinging, it helps :-)
>
> >>> Hi,
> >>
> >> lp1243022.c will fail with options: -mfpu=neon -mfloat-abi=hard.
> >>
> >> Logs show it does not generate auto-incremental instruction in pass
> >> auto_inc_dec. In this case, the check of REG_INC note at subreg2 will
> >> be invalid. So skip the check for target arm-neon.
> >>
> >> All PASS with the following options:
> >>
> >> -mthumb/-mcpu=cortex-a9/-mfloat-abi=hard
> >> -mthumb/-mcpu=cortex-a9/-mfloat-abi=soft
> >> -mthumb/-mcpu=cortex-a9/-mfloat-abi=softfp
> >> -mthumb/-mcpu=cortex-a9/-mfloat-abi=soft/-mfpu=vfpv3
> >> -mthumb/-mcpu=cortex-a9/-mfloat-abi=softfp/-mfpu=vfpv3
> >> -mthumb/-mcpu=cortex-a9/-mfloat-abi=hard/-mfpu=vfpv3
> >> -mthumb/-mcpu=cortex-a9/-mfloat-abi=soft/-mfpu=neon
> >> -mthumb/-mcpu=cortex-a9/-mfloat-abi=softfp/-mfpu=neon
> >> -mthumb/-mcpu=cortex-a9/-mfloat-abi=hard/-mfpu=neon
> >> -mthumb/-mcpu=cortex-a15/-mfloat-abi=hard
> >> -mthumb/-mcpu=cortex-a15/-mfloat-abi=soft
> >> -mthumb/-mcpu=cortex-a15/-mfloat-abi=softfp
> >> -mthumb/-mcpu=cortex-a15/-mfloat-abi=soft/-mfpu=vfpv4
> >> -mthumb/-mcpu=cortex-a15/-mfloat-abi=softfp/-mfpu=vfpv4
> >> -mthumb/-mcpu=cortex-a15/-mfloat-abi=hard/-mfpu=vfpv4
> >> -mthumb/-mcpu=cortex-a15/-mfloat-abi=soft/-mfpu=neon
> >> -mthumb/-mcpu=cortex-a15/-mfloat-abi=softfp/-mfpu=neon
> >> -mthumb/-mcpu=cortex-a15/-mfloat-abi=hard/-mfpu=neon
> >>
> >> Is it OK?
> >>
> >> Thanks!
> >> -Zhenqiang
> >>
> >> testsuite/ChangeLog:
> >> 2013-11-08 Zhenqiang Chen <zhenqiang.c...@linaro.org>
> >>
> >> * gcc.target/arm/lp1243022.c: Skip target arm-neon.
> It seems to me you should be xfailing arm-neon, not skipping the test.
> Unless there is some fundamental reason why we can not generate auto-inc
> instructions on the neon.
Thanks for the comments. Update the test case as xfail.
diff --git a/gcc/testsuite/gcc.target/arm/lp1243022.c
b/gcc/testsuite/gcc.target/arm/lp1243022.c
index 91a544d..b2ebe7e 100644
--- a/gcc/testsuite/gcc.target/arm/lp1243022.c
+++ b/gcc/testsuite/gcc.target/arm/lp1243022.c
@@ -1,7 +1,7 @@
/* { dg-do compile { target arm_thumb2 } } */
/* { dg-options "-O2 -fdump-rtl-subreg2" } */
-/* { dg-final { scan-rtl-dump "REG_INC" "subreg2" } } */
+/* { dg-final { scan-rtl-dump "REG_INC" "subreg2" { xfail arm_neon } } } */
/* { dg-final { cleanup-rtl-dump "subreg2" } } */
struct device;
typedef unsigned int __u32;
