* [PATCH 1/1] guile: workaround ice ssa corruption while DEBUG_BUILD
2014-08-11 2:23 [PATCH V2 0/1] guile: workaround ice ssa corruption while DEBUG_BUILD Hongxu Jia
@ 2014-08-11 2:23 ` Hongxu Jia
2014-08-19 6:21 ` [PATCH V2 0/1] " Hongxu Jia
1 sibling, 0 replies; 3+ messages in thread
From: Hongxu Jia @ 2014-08-11 2:23 UTC (permalink / raw)
To: openembedded-core; +Cc: saul.wold
Add:
MACHINE = "qemux86-64"
DEBUG_BUILD = "1"
to local.conf and there was a ssa corruption to build guile:
..
Unable to coalesce ssa_names 48 and 3476 which are marked as MUST COALESCE.
sp_48(ab) and sp_3476(ab)
guile-2.0.11/libguile/vm-engine.c: In function 'vm_debug_engine':
guile-2.0.11/libguile/vm.c:673:19: internal compiler error: SSA corruption
#define VM_NAME vm_debug_engine
^
guile-2.0.11/libguile/vm-engine.c:39:1: note: in expansion of macro 'VM_NAME'
VM_NAME (SCM vm, SCM program, SCM *argv, int nargs)
^
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
...
Tweak libguile/vm-i-system.c to check the value of nshuf to workaround it.
The tweak didn't change previous logic.
[YOCTO #6411]
Signed-off-by: Hongxu Jia <hongxu.jia@windriver.com>
---
.../files/workaround-ice-ssa-corruption.patch | 60 ++++++++++++++++++++++
meta/recipes-devtools/guile/guile_2.0.11.bb | 1 +
2 files changed, 61 insertions(+)
create mode 100644 meta/recipes-devtools/guile/files/workaround-ice-ssa-corruption.patch
diff --git a/meta/recipes-devtools/guile/files/workaround-ice-ssa-corruption.patch b/meta/recipes-devtools/guile/files/workaround-ice-ssa-corruption.patch
new file mode 100644
index 0000000..6c34838
--- /dev/null
+++ b/meta/recipes-devtools/guile/files/workaround-ice-ssa-corruption.patch
@@ -0,0 +1,60 @@
+libguile/vm-i-system.c: workaround ice ssa corruption while compiling with option -g -O
+
+While compiling with option -g -O, there was a ssa corruption:
+..
+Unable to coalesce ssa_names 48 and 3476 which are marked as MUST COALESCE.
+sp_48(ab) and sp_3476(ab)
+guile-2.0.11/libguile/vm-engine.c: In function 'vm_debug_engine':
+guile-2.0.11/libguile/vm.c:673:19: internal compiler error: SSA corruption
+ #define VM_NAME vm_debug_engine
+ ^
+guile-2.0.11/libguile/vm-engine.c:39:1: note: in expansion of macro 'VM_NAME'
+ VM_NAME (SCM vm, SCM program, SCM *argv, int nargs)
+ ^
+Please submit a full bug report,
+with preprocessed source if appropriate.
+See <http://gcc.gnu.org/bugs.html> for instructions.
+...
+
+Tweak libguile/vm-i-system.c to add boundary value check to workaround it.
+
+Upstream-Status: Pending
+
+Signed-off-by: Hongxu Jia <hongxu.jia@windriver.com>
+---
+ libguile/vm-i-system.c | 20 ++++++++++++++++----
+ 1 file changed, 16 insertions(+), 4 deletions(-)
+
+diff --git a/libguile/vm-i-system.c b/libguile/vm-i-system.c
+--- a/libguile/vm-i-system.c
++++ b/libguile/vm-i-system.c
+@@ -625,10 +625,22 @@ VM_DEFINE_INSTRUCTION (47, bind_optionals_shuffle, "bind-optionals/shuffle", 6,
+ /* now shuffle up, from walk to ntotal */
+ {
+ scm_t_ptrdiff nshuf = sp - walk + 1, i;
+- sp = (fp - 1) + ntotal + nshuf;
+- CHECK_OVERFLOW ();
+- for (i = 0; i < nshuf; i++)
+- sp[-i] = walk[nshuf-i-1];
++ /* check the value of nshuf to workaround ice ssa corruption */
++ /* while compiling with -O -g */
++ if (nshuf > 0)
++ {
++ sp = (fp - 1) + ntotal + nshuf;
++ CHECK_OVERFLOW ();
++ for (i = 0; i < nshuf; i++)
++ sp[-i] = walk[nshuf-i-1];
++ }
++ else
++ {
++ sp = (fp - 1) + ntotal + nshuf;
++ CHECK_OVERFLOW ();
++ for (i = 0; i < nshuf; i++)
++ sp[-i] = walk[nshuf-i-1];
++ }
+ }
+ /* and fill optionals & keyword args with SCM_UNDEFINED */
+ while (walk <= (fp - 1) + ntotal)
+--
+1.9.1
+
diff --git a/meta/recipes-devtools/guile/guile_2.0.11.bb b/meta/recipes-devtools/guile/guile_2.0.11.bb
index d19460a..f1b255b 100644
--- a/meta/recipes-devtools/guile/guile_2.0.11.bb
+++ b/meta/recipes-devtools/guile/guile_2.0.11.bb
@@ -19,6 +19,7 @@ SRC_URI = "${GNU_MIRROR}/guile/guile-${PV}.tar.xz \
file://opensuse/guile-64bit.patch \
file://guile_2.0.6_fix_sed_error.patch \
file://arm_endianness.patch \
+ file://workaround-ice-ssa-corruption.patch \
"
# file://debian/0001-Change-guile-to-guile-X.Y-for-info-pages.patch
--
1.9.1
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