patch to fix extraneous nop at function start, bug from David Mosberger

[pf3gnuchains/gcc-fork.git] / gcc / config / ia64 / ia64.md

diff --git a/gcc/config/ia64/ia64.md b/gcc/config/ia64/ia64.md
index cb5dd10..365c0a8 100644 (file)
--- a/gcc/config/ia64/ia64.md
+++ b/gcc/config/ia64/ia64.md
@@ -163,6 +163,11 @@
 
 (define_attr "empty" "no,yes" (const_string "no"))
 
+;; True iff this insn must be the first insn of an instruction group.
+;; This is true for the alloc instruction, and will also be true of others
+;; when we have full intrinsics support.
+
+(define_attr "first_insn" "no,yes" (const_string "no"))
 \f
 ;; DFA descriptions of ia64 processors used for insn scheduling and
 ;; bundling.
@@ -5703,7 +5708,8 @@
   ""
   "alloc %0 = ar.pfs, %1, %2, %3, %4"
   [(set_attr "itanium_class" "syst_m0")
-   (set_attr "predicable" "no")])
+   (set_attr "predicable" "no")
+   (set_attr "first_insn" "yes")])
 
 ;; Modifies ar.unat
 (define_expand "gr_spill"