s390.md: Added agen condition to operand forwarding bypasses.

2009-10-20  Wolfgang Gellerich  <gellerich@de.ibm.com>

	* config/s390/s390.md: Added agen condition to operand
	forwarding bypasses.
	Added bypass for early address generation use of int results.
	Updated comments.

From-SVN: r153006

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 97e0d104d98f03cb1d37938586762c7d62028b72..1bc1f04dc7f5a94850d229311886491ff5dd8473 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,10 @@
+2009-10-20  Wolfgang Gellerich  <gellerich@de.ibm.com>
+
+       * config/s390/s390.md: Added agen condition to operand
+       forwarding bypasses. 
+       Added bypass for early address generation use of int results.
+       Updated comments.
+
 2009-10-20  Stefan Dösinger  <stefan@codeweavers.com>
 
        * config/i386/i386.c: Remove signal.h #include.

diff --git a/gcc/config/s390/2097.md b/gcc/config/s390/2097.md
index eb7240effd4f5cb5bb263a329d0c887308917903..56893596a748b2b433b1c366fdf45ef7c622a9dc 100644 (file)
--- a/gcc/config/s390/2097.md
+++ b/gcc/config/s390/2097.md
@@ -57,7 +57,8 @@
                   z10_int_fr_A3"
                   "z10_other_super, z10_other_super_c_E1, z10_other_super_E1, \
                   z10_int_super, z10_int_super_E1, \
-                  z10_lr, z10_store_super")
+                  z10_lr, z10_store_super"
+                  " ! s390_agen_dep_p")
 
 
 ; Forwarding from z10_super to frz10_ and z10_rec.
@@ -68,7 +69,8 @@
                   z10_store_super"
                   "z10_int_fr, z10_int_fr_E1, z10_int_fr_A3, \
                   z10_other_fr, z10_other_fr_A3, z10_lr_fr, z10_lr_fr_E1, \
-                  z10_other_fr_E1, z10_store_rec")
+                  z10_other_fr_E1, z10_store_rec"
+                  " ! s390_agen_dep_p")
 
 
 ; Forwarding from z10_fwd and z10_fr to z10_rec and z10_fr.
@@ -84,7 +86,8 @@
                   z10_int_fr_A3"
                   "z10_int_fr, z10_int_fr_E1, z10_int_fr_A3, \
                   z10_other_fr, z10_other_fr_A3, z10_lr_fr, z10_lr_fr_E1, \
-                  z10_other_fr_E1, z10_store_rec")
+                  z10_other_fr_E1, z10_store_rec"
+                  " ! s390_agen_dep_p")
 
 
 ;
@@ -205,15 +208,12 @@
        (and (eq_attr "type" "lr")
             (eq_attr "z10prop" "z10_fr")))
   "z10_e1_ANY, z10_Gate_ANY")
-;  "z10_e1_ANY")
 
 (define_insn_reservation "z10_lr_fr_E1" 6
   (and (eq_attr "cpu" "z10")
        (and (eq_attr "type" "lr")
             (eq_attr "z10prop" "z10_fr_E1")))
   "z10_e1_ANY, z10_Gate_ANY")
-;  "z10_e1_ANY")
-
 
 (define_insn_reservation "z10_la" 6
   (and (eq_attr "cpu" "z10")
@@ -227,14 +227,12 @@
        (and (eq_attr "type" "la")
             (eq_attr "z10prop" "z10_fwd")))
   "z10_e1_ANY, z10_Gate_ANY")
-;  "z10_e1_ANY")
 
 (define_insn_reservation "z10_la_fwd_A1" 6
   (and (eq_attr "cpu" "z10")
        (and (eq_attr "type" "la")
             (eq_attr "z10prop" "z10_fwd_A1")))
   "z10_e1_ANY, z10_Gate_ANY")
-;  "z10_e1_ANY")
 
 
 ; larl-type instructions
@@ -666,13 +664,14 @@
 ; Address-related bypasses
 ;
 
-; Here is the cycle diagram for Address-related bypasses:
+; Here is the cycle diagram for address-related bypasses:
 ; ... G1 G2 G3 A0 A1 A2 A3 E1 P1 P2 P3 R0 ...
-;         ^  ^    ^     ^  ^
-;         |  |    |     |  E1-type bypasses provide the new addr AFTER this cycle
-;         |  |    |     A3-type bypasses provide the new addr AFTER this cycle
-;         |  |    A1-type bypasses provide the new addr AFTER this cycle
-;         |  AGI resolution, actual USE of address is DURING this cycle
+;         ^  ^    ^     ^  ^        ^
+;         |  |    |     |  |        without bypass, its available AFTER this cycle
+;         |  |    |     |  E1-type bypasses provide the new value AFTER this cycle
+;         |  |    |     A3-type bypasses provide the new value AFTER this cycle
+;         |  |    A1-type bypasses provide the new value AFTER this cycle
+;         |  AGI resolution, actual USE of new value is DURING this cycle
 ;         AGI detection
 
 (define_bypass 3 "z10_larl_A1, z10_la_fwd_A1, z10_other_fwd_A1, \
@@ -682,7 +681,6 @@
                   z10_cs, z10_stm, z10_other"
                 "s390_agen_dep_p")
 
-
 (define_bypass 5 "z10_larl_fwd_A3, z10_load_fwd_A3, z10_other_fwd_A3, \
                   z10_other_fr_A3, z10_int_fwd_A3, z10_int_fr_A3"
                  "z10_agen, z10_la, z10_branch, z10_call, z10_load, \
@@ -699,6 +697,12 @@
                   z10_cs, z10_stm, z10_other"
                 "s390_agen_dep_p")
 
+(define_bypass 9 "z10_int_super, z10_int_fwd, z10_int_fr"
+                 "z10_agen, z10_la, z10_branch, z10_call, z10_load, \
+                  z10_store, \
+                  z10_cs, z10_stm, z10_other"
+                "s390_agen_dep_p")
+
 
 
 ;