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authorhubicka <hubicka@138bc75d-0d04-0410-961f-82ee72b054a4>2004-02-21 00:34:46 +0000
committerhubicka <hubicka@138bc75d-0d04-0410-961f-82ee72b054a4>2004-02-21 00:34:46 +0000
commit45c09478fca62fa58a6c181b33e15fda40f9a468 (patch)
tree18dbcbc8a1640d7b3dabe363406823a934ea0dd5 /gcc
parent9449b2241093cd9702527534c5cdc63beb67f4d0 (diff)
downloadgcc-45c09478fca62fa58a6c181b33e15fda40f9a468.tar.gz
* params.def (max-peeled-insns, max-completely-peeled-insns,
max-once-peeled-insns): Set to 400. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@78201 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc')
-rw-r--r--gcc/ChangeLog5
-rw-r--r--gcc/params.def13
2 files changed, 14 insertions, 4 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 9f0bf7baafb..6dd4649f26b 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2004-02-21 Jan Hubicka <jh@suse.cz>
+
+ * params.def (max-peeled-insns, max-completely-peeled-insns,
+ max-once-peeled-insns): Set to 400.
+
2004-02-20 John David Anglin <dave.anglin@nrc-cnrc.gc.ca>
PR c++/12007
diff --git a/gcc/params.def b/gcc/params.def
index 5642be4ad7b..3d5a6b70a2a 100644
--- a/gcc/params.def
+++ b/gcc/params.def
@@ -133,7 +133,12 @@ DEFPARAM(PARAM_MAX_GCSE_PASSES,
1)
/* This parameter limits the number of insns in a loop that will be unrolled,
- and by how much the loop is unrolled. */
+ and by how much the loop is unrolled.
+
+ This limit should be at most half of the peeling limits: loop unroller
+ decides to not unroll loops that iterate fewer than 2*number of allowed
+ unrollings and thus we would have loops that are neither peeled or unrooled
+ otherwise. */
DEFPARAM(PARAM_MAX_UNROLLED_INSNS,
"max-unrolled-insns",
"The maximum number of instructions to consider to unroll in a loop",
@@ -153,7 +158,7 @@ DEFPARAM(PARAM_MAX_UNROLL_TIMES,
DEFPARAM(PARAM_MAX_PEELED_INSNS,
"max-peeled-insns",
"The maximum number of insns of a peeled loop",
- 120)
+ 400)
/* The maximum number of peelings of a single loop. */
DEFPARAM(PARAM_MAX_PEEL_TIMES,
"max-peel-times",
@@ -163,7 +168,7 @@ DEFPARAM(PARAM_MAX_PEEL_TIMES,
DEFPARAM(PARAM_MAX_COMPLETELY_PEELED_INSNS,
"max-completely-peeled-insns",
"The maximum number of insns of a completely peeled loop",
- 120)
+ 400)
/* The maximum number of peelings of a single loop that is peeled completely. */
DEFPARAM(PARAM_MAX_COMPLETELY_PEEL_TIMES,
"max-completely-peel-times",
@@ -173,7 +178,7 @@ DEFPARAM(PARAM_MAX_COMPLETELY_PEEL_TIMES,
DEFPARAM(PARAM_MAX_ONCE_PEELED_INSNS,
"max-once-peeled-insns",
"The maximum number of insns of a peeled loop that rolls only once",
- 200)
+ 400)
/* The maximum number of insns of an unswitched loop. */
DEFPARAM(PARAM_MAX_UNSWITCH_INSNS,