From 749af8ee126fea9757ecf38ea85093603114bd50 Mon Sep 17 00:00:00 2001
From: Richard Henderson <rth@redhat.com>
Date: Fri, 1 Feb 2013 08:34:15 -0800
Subject: [PATCH] ppc64: widening multiply patterns
* config/rs6000/rs6000.md (smulditi3): New.
(umulditi3): New.
From-SVN: r195667
---
gcc/ChangeLog | 5 +++++
gcc/config/rs6000/rs6000.md | 28 ++++++++++++++++++++++++++++
2 files changed, 33 insertions(+)
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 8c37f919bb2e..dd9224dd9866 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2013-02-01 Richard Henderson <rth@redhat.com>
+
+ * config/rs6000/rs6000.md (smulditi3): New.
+ (umulditi3): New.
+
2013-02-01 David Edelsohn <dje.gcc@gmail.com>
* config/rs6000/xcoff.h (ASM_OUTPUT_ALIGNED_COMMON): Use floor_log2.
diff --git a/gcc/config/rs6000/rs6000.md b/gcc/config/rs6000/rs6000.md
index a4af648a3195..b3db6817647e 100644
--- a/gcc/config/rs6000/rs6000.md
+++ b/gcc/config/rs6000/rs6000.md
@@ -6326,6 +6326,34 @@
"mulhdu %0,%1,%2"
[(set_attr "type" "lmul")])
+(define_expand "mulditi3"
+ [(set (match_operand:TI 0 "gpc_reg_operand")
+ (mult:TI (sign_extend:TI (match_operand:DI 1 "gpc_reg_operand"))
+ (sign_extend:TI (match_operand:DI 2 "gpc_reg_operand"))))]
+ "TARGET_POWERPC64"
+{
+ rtx l = gen_reg_rtx (DImode), h = gen_reg_rtx (DImode);
+ emit_insn (gen_muldi3 (l, operands[1], operands[2]));
+ emit_insn (gen_smuldi3_highpart (h, operands[1], operands[2]));
+ emit_move_insn (gen_lowpart (DImode, operands[0]), l);
+ emit_move_insn (gen_highpart (DImode, operands[0]), h);
+ DONE;
+})
+
+(define_expand "umulditi3"
+ [(set (match_operand:TI 0 "gpc_reg_operand")
+ (mult:TI (zero_extend:TI (match_operand:DI 1 "gpc_reg_operand"))
+ (zero_extend:TI (match_operand:DI 2 "gpc_reg_operand"))))]
+ "TARGET_POWERPC64"
+{
+ rtx l = gen_reg_rtx (DImode), h = gen_reg_rtx (DImode);
+ emit_insn (gen_muldi3 (l, operands[1], operands[2]));
+ emit_insn (gen_umuldi3_highpart (h, operands[1], operands[2]));
+ emit_move_insn (gen_lowpart (DImode, operands[0]), l);
+ emit_move_insn (gen_highpart (DImode, operands[0]), h);
+ DONE;
+})
+
(define_insn "rotldi3"
[(set (match_operand:DI 0 "gpc_reg_operand" "=r,r")
(rotate:DI (match_operand:DI 1 "gpc_reg_operand" "r,r")
--
GitLab