From 8b8e41e5c236b4d878f56011c4bb68dd396e5e9a Mon Sep 17 00:00:00 2001
From: Vladimir Makarov <vmakarov@redhat.com>
Date: Wed, 15 Mar 2017 23:04:09 +0000
Subject: [PATCH] re PR target/80017 (ICE: Max. number of generated reload
insns per insn is achieved (90))
2017-03-15 Vladimir Makarov <vmakarov@redhat.com>
PR target/80017
* lra-constraints.c (process_alt_operands): Increase reject for
reloading an input/output operand.
From-SVN: r246181
---
gcc/ChangeLog | 6 ++++++
gcc/lra-constraints.c | 9 +++++++++
2 files changed, 15 insertions(+)
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index c01d583faede..88f60073d998 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2017-03-15 Vladimir Makarov <vmakarov@redhat.com>
+
+ PR target/80017
+ * lra-constraints.c (process_alt_operands): Increase reject for
+ reloading an input/output operand.
+
2017-03-15 Michael Meissner <meissner@linux.vnet.ibm.com>
PR target/79038
diff --git a/gcc/lra-constraints.c b/gcc/lra-constraints.c
index e0ce8072ab05..4d986249a6fa 100644
--- a/gcc/lra-constraints.c
+++ b/gcc/lra-constraints.c
@@ -2713,6 +2713,15 @@ process_alt_operands (int only_alternative)
if (MEM_P (op) && offmemok)
addr_losers++;
+ else if (curr_static_id->operand[nop].type == OP_INOUT)
+ {
+ if (lra_dump_file != NULL)
+ fprintf
+ (lra_dump_file,
+ " %d Input/Output reload: reject+=%d\n",
+ nop, LRA_LOSER_COST_FACTOR);
+ reject += LRA_LOSER_COST_FACTOR;
+ }
}
if (early_clobber_p && ! scratch_p)