From: Michael Hayes <m.hayes@elec.canterbury.ac.nz>
Date: Fri, 14 May 1999 19:19:30 +0000 (+0000)
Subject: c4x.md (set_lo_sum+2): New splitter to load large const_ints.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=c08733d0221f41ce5a2d684e9592940f380d7623;p=gcc.git

c4x.md (set_lo_sum+2): New splitter to load large const_ints.

	* config/c4x/c4x.md (set_lo_sum+2): New splitter to load large
	const_ints.

From-SVN: r26940
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 461524bae61..9be10911156 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+Sat May 15 14:12:38 1999  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>
+
+	* config/c4x/c4x.md (set_lo_sum+2): New splitter to load large
+	const_ints.
+
 Sat May 15 14:09:08 1999  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>
 
 	* config/c4x/c4x.md (decrement_and_branch_on_count): Disabled.
diff --git a/gcc/config/c4x/c4x.md b/gcc/config/c4x/c4x.md
index 1b7bd2b287b..a0a4e0b9dd9 100644
--- a/gcc/config/c4x/c4x.md
+++ b/gcc/config/c4x/c4x.md
@@ -1127,6 +1127,20 @@
    (set (match_dup 0) (lo_sum:QI (match_dup 0) (match_dup 1)))]
   "")
 
+(define_split
+  [(set (match_operand:QI 0 "std_reg_operand" "")
+	(match_operand:QI 1 "const_int_operand" ""))]
+  "! TARGET_C3X
+   && (INTVAL (operands[1]) & ~0xffff) != 0
+   && (INTVAL (operands[1]) & 0xffff) != 0"
+  [(set (match_dup 0) (match_dup 2))
+   (set (match_dup 0) (ior:QI (match_dup 0) (match_dup 3)))]
+  "
+{
+   operands[2] = gen_rtx (CONST_INT, VOIDmode, INTVAL (operands[1]) & ~0xffff);
+   operands[3] = gen_rtx (CONST_INT, VOIDmode, INTVAL (operands[1]) & 0xffff);
+}")
+
 ; This pattern is required to handle the case where a register that clobbers
 ; CC has been selected to load a symbolic address.  We force the address
 ; into memory and then generate LDP and LDIU insns.