Hi!
Ping.
On Thu, 29 Sep 2016 15:18:00 +0200, Thomas Schwinge <tho...@codesourcery.com>
wrote:
> On Mon, 19 Sep 2016 13:25:01 +0200, Richard Biener
> <richard.guent...@gmail.com> wrote:
> > On Mon, Sep 19, 2016 at 1:19 PM, Thomas Schwinge
> > <tho...@codesourcery.com> wrote:
> > > On Mon, 19 Sep 2016 10:18:35 +0200, Richard Biener
> > > <richard.guent...@gmail.com> wrote:
> > >> On Fri, Sep 16, 2016 at 3:32 PM, Thomas Schwinge
> > >> <tho...@codesourcery.com> wrote:
> > >> > --- gcc/tree-streamer.c
> > >> > +++ gcc/tree-streamer.c
> > >> > @@ -278,9 +278,23 @@ record_common_node (struct streamer_tree_cache_d
> > >> > *cache, tree node)
> > >> > streamer_tree_cache_append (cache, node, cache->nodes.length ());
> > >> >
> > >> > if (POINTER_TYPE_P (node)
> > >> > - || TREE_CODE (node) == COMPLEX_TYPE
> > >> > || TREE_CODE (node) == ARRAY_TYPE)
> > >> > record_common_node (cache, TREE_TYPE (node));
> > >> > + else if (TREE_CODE (node) == COMPLEX_TYPE)
> > >> > + {
> > >> > + /* Assert that complex types' component types have already been
> > >> > handled
> > >> > + (and we thus don't need to recurse here). See PR lto/77458.
> > >> > */
> > >> > +[...]
>
> > >> So I very much like to go forward with this kind of change as well
>
> > > [patch]
>
> > Ok with [changes]
>
> Like this? (I'll then continue to replicate this for other tree codes.)
commit 1c7dd6d92b7805cf12aaf822e509fa384cfcfbb0
Author: Thomas Schwinge <tho...@codesourcery.com>
Date: Wed Sep 28 12:36:59 2016 +0200
[PR lto/77458] Avoid ICE in offloading with differing _FloatN, _FloatNx
types
gcc/
PR lto/77458
* tree-core.h (enum tree_index): Put the complex types after their
component types.
* tree-streamer.c (verify_common_node_recorded): New function.
(preload_common_nodes) <TREE_CODE (node) == COMPLEX_TYPE>: Use it.
---
gcc/tree-core.h | 31 +++++++++++++++++--------------
gcc/tree-streamer.c | 32 +++++++++++++++++++++++++++++++-
2 files changed, 48 insertions(+), 15 deletions(-)
diff --git gcc/tree-core.h gcc/tree-core.h
index 1bfe682..3e3f31e 100644
--- gcc/tree-core.h
+++ gcc/tree-core.h
@@ -556,20 +556,6 @@ enum tree_index {
TI_BOOLEAN_FALSE,
TI_BOOLEAN_TRUE,
- TI_COMPLEX_INTEGER_TYPE,
- TI_COMPLEX_FLOAT_TYPE,
- TI_COMPLEX_DOUBLE_TYPE,
- TI_COMPLEX_LONG_DOUBLE_TYPE,
-
- TI_COMPLEX_FLOAT16_TYPE,
- TI_COMPLEX_FLOATN_NX_TYPE_FIRST = TI_COMPLEX_FLOAT16_TYPE,
- TI_COMPLEX_FLOAT32_TYPE,
- TI_COMPLEX_FLOAT64_TYPE,
- TI_COMPLEX_FLOAT128_TYPE,
- TI_COMPLEX_FLOAT32X_TYPE,
- TI_COMPLEX_FLOAT64X_TYPE,
- TI_COMPLEX_FLOAT128X_TYPE,
-
TI_FLOAT_TYPE,
TI_DOUBLE_TYPE,
TI_LONG_DOUBLE_TYPE,
@@ -599,6 +585,23 @@ enum tree_index {
- TI_FLOATN_NX_TYPE_FIRST \
+ 1)
+ /* Put the complex types after their component types, so that in (sequential)
+ tree streaming we can assert that their component types have already been
+ handled (see tree-streamer.c:record_common_node). */
+ TI_COMPLEX_INTEGER_TYPE,
+ TI_COMPLEX_FLOAT_TYPE,
+ TI_COMPLEX_DOUBLE_TYPE,
+ TI_COMPLEX_LONG_DOUBLE_TYPE,
+
+ TI_COMPLEX_FLOAT16_TYPE,
+ TI_COMPLEX_FLOATN_NX_TYPE_FIRST = TI_COMPLEX_FLOAT16_TYPE,
+ TI_COMPLEX_FLOAT32_TYPE,
+ TI_COMPLEX_FLOAT64_TYPE,
+ TI_COMPLEX_FLOAT128_TYPE,
+ TI_COMPLEX_FLOAT32X_TYPE,
+ TI_COMPLEX_FLOAT64X_TYPE,
+ TI_COMPLEX_FLOAT128X_TYPE,
+
TI_FLOAT_PTR_TYPE,
TI_DOUBLE_PTR_TYPE,
TI_LONG_DOUBLE_PTR_TYPE,
diff --git gcc/tree-streamer.c gcc/tree-streamer.c
index 2139e96..60118dc 100644
--- gcc/tree-streamer.c
+++ gcc/tree-streamer.c
@@ -248,6 +248,32 @@ streamer_tree_cache_lookup (struct streamer_tree_cache_d
*cache, tree t,
}
+/* Verify that NODE is in CACHE. */
+
+static void
+verify_common_node_recorded (struct streamer_tree_cache_d *cache, tree node)
+{
+ /* Restrict this to flag_checking only because in general violating it is
+ harmless plus we never know what happens on all targets/frontend/flag(!)
+ combinations. */
+ if (!flag_checking)
+ return;
+
+ bool found = false;
+ if (cache->node_map)
+ gcc_assert (streamer_tree_cache_lookup (cache, node, NULL));
+ else
+ {
+ gcc_assert (cache->nodes.exists ());
+ /* Linear search... */
+ for (unsigned i = 0; !found && i < cache->nodes.length (); ++i)
+ if (cache->nodes[i] == node)
+ found = true;
+ gcc_assert (found);
+ }
+}
+
+
/* Record NODE in CACHE. */
static void
@@ -293,11 +319,15 @@ record_common_node (struct streamer_tree_cache_d *cache,
tree node)
/* No recursive trees. */
break;
case ARRAY_TYPE:
- case COMPLEX_TYPE:
case POINTER_TYPE:
case REFERENCE_TYPE:
record_common_node (cache, TREE_TYPE (node));
break;
+ case COMPLEX_TYPE:
+ /* Verify that a complex type's component type (node_type) has been
+ handled already (and we thus don't need to recurse here). */
+ verify_common_node_recorded (cache, TREE_TYPE (node));
+ break;
case RECORD_TYPE:
/* The FIELD_DECLs of structures should be shared, so that every
COMPONENT_REF uses the same tree node when referencing a field.
Grüße
Thomas
