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authorkrebbel <krebbel@138bc75d-0d04-0410-961f-82ee72b054a4>2011-05-04 12:01:21 +0000
committerkrebbel <krebbel@138bc75d-0d04-0410-961f-82ee72b054a4>2011-05-04 12:01:21 +0000
commitadaf4ef091f57a9a977db881fc2f3ce5a7fdd3bb (patch)
tree8900c45044a2c5fcbab68008ebff0cf2f9c08fa3 /gcc/explow.c
parent852640e9c5bf075aaa74b75ee6bd276f81a135d9 (diff)
downloadgcc-adaf4ef091f57a9a977db881fc2f3ce5a7fdd3bb.tar.gz
2011-05-04 Andreas Krebbel <Andreas.Krebbel@de.ibm.com>
* calls.c (emit_library_call_value_1): Invoke promote_function_mode hook on libcall arguments. * explow.c (promote_function_mode, promote_mode): Handle TYPE argument being NULL. * targhooks.c (default_promote_function_mode): Lisewise. * config/s390/s390.c (s390_promote_function_mode): Likewise. * config/sparc/sparc.c (sparc_promote_function_mode): Likewise. * doc/tm.texi: Document that TYPE argument might be NULL. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@173371 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/explow.c')
-rw-r--r--gcc/explow.c17
1 files changed, 17 insertions, 0 deletions
diff --git a/gcc/explow.c b/gcc/explow.c
index a0a160dd2bd..da04505a7e8 100644
--- a/gcc/explow.c
+++ b/gcc/explow.c
@@ -771,6 +771,17 @@ enum machine_mode
promote_function_mode (const_tree type, enum machine_mode mode, int *punsignedp,
const_tree funtype, int for_return)
{
+ /* Called without a type node for a libcall. */
+ if (type == NULL_TREE)
+ {
+ if (INTEGRAL_MODE_P (mode))
+ return targetm.calls.promote_function_mode (NULL_TREE, mode,
+ punsignedp, funtype,
+ for_return);
+ else
+ return mode;
+ }
+
switch (TREE_CODE (type))
{
case INTEGER_TYPE: case ENUMERAL_TYPE: case BOOLEAN_TYPE:
@@ -791,6 +802,12 @@ enum machine_mode
promote_mode (const_tree type ATTRIBUTE_UNUSED, enum machine_mode mode,
int *punsignedp ATTRIBUTE_UNUSED)
{
+ /* For libcalls this is invoked without TYPE from the backends
+ TARGET_PROMOTE_FUNCTION_MODE hooks. Don't do anything in that
+ case. */
+ if (type == NULL_TREE)
+ return mode;
+
/* FIXME: this is the same logic that was there until GCC 4.4, but we
probably want to test POINTERS_EXTEND_UNSIGNED even if PROMOTE_MODE
is not defined. The affected targets are M32C, S390, SPARC. */