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authorkrebbel <krebbel@138bc75d-0d04-0410-961f-82ee72b054a4>2010-11-26 13:16:28 +0000
committerkrebbel <krebbel@138bc75d-0d04-0410-961f-82ee72b054a4>2010-11-26 13:16:28 +0000
commitc00f39604d65f12fc13f2268a4ced052d0517f4e (patch)
tree345a67b25d06648ff99ed66b0aae2aae28c5ec60 /gcc/config/s390
parent748c2ed21430b9f91454636e083991612ebd460f (diff)
downloadppe42-gcc-c00f39604d65f12fc13f2268a4ced052d0517f4e.tar.gz
ppe42-gcc-c00f39604d65f12fc13f2268a4ced052d0517f4e.zip
2010-11-26 Christian Borntraeger <borntraeger@de.ibm.com>
* config/s390/2817.md (z196_crack): Add z196_g3 as possible slot. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@167174 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/config/s390')
-rw-r--r--gcc/config/s390/2817.md6
1 files changed, 4 insertions, 2 deletions
diff --git a/gcc/config/s390/2817.md b/gcc/config/s390/2817.md
index 9bd4e1a449c..ea181b01fd1 100644
--- a/gcc/config/s390/2817.md
+++ b/gcc/config/s390/2817.md
@@ -40,8 +40,10 @@
(define_reservation "z196_simple" "( z196_g1 | z196_g2 | z196_g3 )")
(define_reservation "z196_ends" "( z196_g3 | ( z196_g2 + z196_g3 ) | ( z196_g1 + z196_g2 + z196_g3 ) )")
-;; Try to keep cracked and alone ops together in a clump.
-(define_reservation "z196_crack" "( z196_cr1 | z196_cr2 | z196_cr3 )")
+;; Try to keep cracked and alone insns together in a clump. This will also
+;; improve the clumping of "normal" insns. We also allow crackes insns
+;; to go as a last instruction together with normal ones.
+(define_reservation "z196_crack" "( z196_cr1 | z196_cr2 | z196_cr3 | z196_g3)")
(define_reservation "z196_alone" "( z196_cr1 | z196_cr2 | z196_cr3 )")
;; Most simple instruction a fast enough to be handled by OOO even with
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