This commit was manufactured by cvs2svn to create tagbje-unsw-branchpoint

'bje-unsw-branchpoint'.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/tags/bje-unsw-branchpoint@97592 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 9 insertions, 0 deletions

diff --git a/gcc/config/xtensa/xtensa.h b/gcc/config/xtensa/xtensa.h
index 01c0caef91d..776fb5feb23 100644
--- a/gcc/config/xtensa/xtensa.h
+++ b/gcc/config/xtensa/xtensa.h
@@ -209,6 +209,15 @@ extern unsigned xtensa_current_frame_size;
    bitfields and the structures that contain them.  */
 #define PCC_BITFIELD_TYPE_MATTERS 1
 
+/* Disable the use of word-sized or smaller complex modes for structures,
+   and for function arguments in particular, where they cause problems with
+   register a7.  The xtensa_copy_incoming_a7 function assumes that there is
+   a single reference to an argument in a7, but with small complex modes the
+   real and imaginary components may be extracted separately, leading to two
+   uses of the register, only one of which would be replaced.  */
+#define MEMBER_TYPE_FORCES_BLK(FIELD, MODE) \
+  ((MODE) == CQImode || (MODE) == CHImode)
+
 /* Align string constants and constructors to at least a word boundary.
    The typical use of this macro is to increase alignment for string
    constants to be word aligned so that 'strcpy' calls that copy