Fix bad constraints in prologue_allocate_stack in i386.md

From-SVN: r29868

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 156a24fc26627904c10bc55ae93366e0e22844aa..043e4554fb3315fefc55bb865380c169129c37ef 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+Fri Oct  8 18:46:11 1999  Bernd Schmidt  <bernds@cygnus.co.uk>
+
+       * i386.md (prologue_allocate_stack): Add '=' constraint letter on
+       output operand.
+
 Thu Oct  7 23:06:50 1999  Richard Henderson  <rth@cygnus.com>
 
        * rs6000.md (fix_truncdfsi2_internal+1): Emit a clobber

diff --git a/gcc/config/i386/i386.md b/gcc/config/i386/i386.md
index ddb106bf4f95a97a1279236d3fdcbf97349bbde8..bd21b31cceb076b9e7a752aa8dabc0a55f7a6ba5 100644 (file)
--- a/gcc/config/i386/i386.md
+++ b/gcc/config/i386/i386.md
@@ -7740,7 +7740,7 @@
 ;; in proper program order.
 
 (define_insn "prologue_allocate_stack"
-  [(set (match_operand:SI 0 "register_operand" "r")
+  [(set (match_operand:SI 0 "register_operand" "=r")
        (plus:SI (match_operand:SI 1 "register_operand" "0")
                 (match_operand:SI 2 "nonmemory_operand" "ri")))
    (set (match_operand:SI 3 "register_operand" "r")