[OE-core] [dora][PATCHv2] gcc-4.8: backport fix for ICE when building opus

Martin Jansa martin.jansa at gmail.com
Mon Aug 11 11:04:37 UTC 2014


On Wed, Jul 30, 2014 at 10:37:10AM +0800, Robert Yang wrote:
> 
> On 07/25/2014 08:16 AM, Martin Jansa wrote:
> > On Fri, Jul 18, 2014 at 01:16:39AM +0200, Martin Jansa wrote:
> >> From: Martin Jansa <martin.jansa at lge.com>
> >>
> >> * backported from 4.8.2, so daisy isn't affected
> >
> > Robert, any eta on this one? If we cannot expect this to be merged in
> > dora in next few days, let me know and I'll temporary add it to
> > .bbappends in our layers.
> 
> Sorry for the late response, I tested it and worked well, I will confirm
> with RP.

There were some dora changes merged today, but this one wasn't one of
them, is there some issue with it?

> > Regards,
> >
> >> Signed-off-by: Martin Jansa <martin.jansa at lge.com>
> >> ---
> >>   meta/recipes-devtools/gcc/gcc-4.8.inc              |   1 +
> >>   .../gcc-4.8/0001-fix-ICE-when-building-opus.patch  | 121 +++++++++++++++++++++
> >>   2 files changed, 122 insertions(+)
> >>   create mode 100644 meta/recipes-devtools/gcc/gcc-4.8/0001-fix-ICE-when-building-opus.patch
> >>
> >> diff --git a/meta/recipes-devtools/gcc/gcc-4.8.inc b/meta/recipes-devtools/gcc/gcc-4.8.inc
> >> index f1260af..ac205de 100644
> >> --- a/meta/recipes-devtools/gcc/gcc-4.8.inc
> >> +++ b/meta/recipes-devtools/gcc/gcc-4.8.inc
> >> @@ -79,6 +79,7 @@ SRC_URI = "${GNU_MIRROR}/gcc/gcc-${PV}/gcc-${PV}.tar.bz2 \
> >>   	   file://0047-repomembug.patch \
> >>   	   file://0048-PR57532.patch \
> >>   	   file://0048-PR58854_fix_arm_apcs_epilogue.patch \
> >> +           file://0001-fix-ICE-when-building-opus.patch \
> >>   	  "
> >>   SRC_URI[md5sum] = "3b2386c114cd74185aa3754b58a79304"
> >>   SRC_URI[sha256sum] = "545b44be3ad9f2c4e90e6880f5c9d4f0a8f0e5f67e1ffb0d45da9fa01bb05813"
> >> diff --git a/meta/recipes-devtools/gcc/gcc-4.8/0001-fix-ICE-when-building-opus.patch b/meta/recipes-devtools/gcc/gcc-4.8/0001-fix-ICE-when-building-opus.patch
> >> new file mode 100644
> >> index 0000000..9d3aeaa
> >> --- /dev/null
> >> +++ b/meta/recipes-devtools/gcc/gcc-4.8/0001-fix-ICE-when-building-opus.patch
> >> @@ -0,0 +1,121 @@
> >> +From 22228d8ba86c70381f7c34c22ac6994234d0f3e7 Mon Sep 17 00:00:00 2001
> >> +From: xguo <xguo at 138bc75d-0d04-0410-961f-82ee72b054a4>
> >> +Date: Fri, 9 Aug 2013 06:59:01 +0000
> >> +Subject: [PATCH] gcc/ChangeLog:
> >> +
> >> +        Backport from mainline:
> >> +        2013-08-09  Zhenqiang Chen  <zhenqiang.chen at linaro.org>
> >> +
> >> +        * config/arm/neon.md (vcond): Fix floating-point vector
> >> +        comparisons against 0.
> >> +
> >> +gcc/testsuite/ChangeLog:
> >> +
> >> +        Backport from mainline:
> >> +        2013-08-09  Zhenqiang Chen  <zhenqiang.chen at linaro.org>
> >> +
> >> +        * gcc.target/arm/lp1189445.c: New testcase.
> >> +
> >> +Upstream-Status: Backport from 4.8.2
> >> +Signed-off-by: Martin Jansa <Martin.Jansa at gmail.com>
> >> +
> >> +More details in:
> >> +http://gcc.1065356.n5.nabble.com/PATCH-ARM-Fix-unrecognizable-vector-comparisons-td947064.html
> >> +
> >> +git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-4_8-branch@201620 138bc75d-0d04-0410-961f-82ee72b054a4
> >> +---
> >> + gcc/ChangeLog                            |  8 ++++++++
> >> + gcc/config/arm/neon.md                   | 34 +++++++++++++++++++++++++++-----
> >> + gcc/testsuite/ChangeLog                  |  7 +++++++
> >> + gcc/testsuite/gcc.target/arm/lp1189445.c | 18 +++++++++++++++++
> >> + 4 files changed, 62 insertions(+), 5 deletions(-)
> >> + create mode 100644 gcc/testsuite/gcc.target/arm/lp1189445.c
> >> +
> >> +diff --git a/gcc/config/arm/neon.md b/gcc/config/arm/neon.md
> >> +index d8d4202..86a5932 100644
> >> +--- a/gcc/config/arm/neon.md
> >> ++++ b/gcc/config/arm/neon.md
> >> +@@ -1732,6 +1732,7 @@
> >> + 			     ? 3 : 1;
> >> +   rtx magic_rtx = GEN_INT (magic_word);
> >> +   int inverse = 0;
> >> ++  int use_zero_form = 0;
> >> +   int swap_bsl_operands = 0;
> >> +   rtx mask = gen_reg_rtx (<V_cmp_result>mode);
> >> +   rtx tmp = gen_reg_rtx (<V_cmp_result>mode);
> >> +@@ -1742,12 +1743,16 @@
> >> +   switch (GET_CODE (operands[3]))
> >> +     {
> >> +     case GE:
> >> ++    case GT:
> >> +     case LE:
> >> ++    case LT:
> >> +     case EQ:
> >> +-      if (!REG_P (operands[5])
> >> +-	  && (operands[5] != CONST0_RTX (<MODE>mode)))
> >> +-	operands[5] = force_reg (<MODE>mode, operands[5]);
> >> +-      break;
> >> ++      if (operands[5] == CONST0_RTX (<MODE>mode))
> >> ++	{
> >> ++	  use_zero_form = 1;
> >> ++	  break;
> >> ++	}
> >> ++      /* Fall through.  */
> >> +     default:
> >> +       if (!REG_P (operands[5]))
> >> + 	operands[5] = force_reg (<MODE>mode, operands[5]);
> >> +@@ -1798,7 +1803,26 @@
> >> + 	 a GT b -> a GT b
> >> + 	 a LE b -> b GE a
> >> + 	 a LT b -> b GT a
> >> +-	 a EQ b -> a EQ b  */
> >> ++	 a EQ b -> a EQ b
> >> ++	 Note that there also exist direct comparison against 0 forms,
> >> ++	 so catch those as a special case.  */
> >> ++      if (use_zero_form)
> >> ++	{
> >> ++	  inverse = 0;
> >> ++	  switch (GET_CODE (operands[3]))
> >> ++	    {
> >> ++	    case LT:
> >> ++	      base_comparison = gen_neon_vclt<mode>;
> >> ++	      break;
> >> ++	    case LE:
> >> ++	      base_comparison = gen_neon_vcle<mode>;
> >> ++	      break;
> >> ++	    default:
> >> ++	      /* Do nothing, other zero form cases already have the correct
> >> ++		 base_comparison.  */
> >> ++	      break;
> >> ++	    }
> >> ++	}
> >> +
> >> +       if (!inverse)
> >> + 	emit_insn (base_comparison (mask, operands[4], operands[5], magic_rtx));
> >> +diff --git a/gcc/testsuite/gcc.target/arm/lp1189445.c b/gcc/testsuite/gcc.target/arm/lp1189445.c
> >> +new file mode 100644
> >> +index 0000000..766748e
> >> +--- /dev/null
> >> ++++ b/gcc/testsuite/gcc.target/arm/lp1189445.c
> >> +@@ -0,0 +1,18 @@
> >> ++/* { dg-do compile } */
> >> ++/* { dg-require-effective-target arm_neon } */
> >> ++/* { dg-add-options arm_neon } */
> >> ++/* { dg-options "-O3" } */
> >> ++
> >> ++int id;
> >> ++int
> >> ++test (const long int *data)
> >> ++{
> >> ++  int i, retval;
> >> ++  retval = id;
> >> ++  for (i = 0; i < id; i++)
> >> ++    {
> >> ++      retval &= (data[i] <= 0);
> >> ++    }
> >> ++
> >> ++  return (retval);
> >> ++}
> >> +--
> >> +2.0.0
> >> +
> >> --
> >> 2.0.0
> >>
> >

-- 
Martin 'JaMa' Jansa     jabber: Martin.Jansa at gmail.com
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