From f281e02cbd0dd2db39100f5bd21564bd83137ac4 Mon Sep 17 00:00:00 2001
From: Evan Cheng <evan.cheng@apple.com>
Date: Mon, 12 Dec 2005 23:47:46 +0000
Subject: [PATCH] Add some integer mul patterns.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24681 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Target/X86/X86InstrInfo.td | 28 +++++++++++++++++-----------
 1 file changed, 17 insertions(+), 11 deletions(-)

diff --git a/lib/Target/X86/X86InstrInfo.td b/lib/Target/X86/X86InstrInfo.td
index 05676f8a7f1..58a924fa12c 100644
--- a/lib/Target/X86/X86InstrInfo.td
+++ b/lib/Target/X86/X86InstrInfo.td
@@ -1353,9 +1353,11 @@ def IMUL32rr : I<0xAF, MRMSrcReg, (ops R32:$dst, R32:$src1, R32:$src2),
                  [(set R32:$dst, (mul R32:$src1, R32:$src2))]>, TB;
 }
 def IMUL16rm : I<0xAF, MRMSrcMem, (ops R16:$dst, R16:$src1, i16mem:$src2),
-                 "imul{w} {$src2, $dst|$dst, $src2}", []>, TB, OpSize;
+                 "imul{w} {$src2, $dst|$dst, $src2}",
+                 [(set R16:$dst, (mul R16:$src1, (load addr:$src2)))]>, TB, OpSize;
 def IMUL32rm : I<0xAF, MRMSrcMem, (ops R32:$dst, R32:$src1, i32mem:$src2),
-                 "imul{l} {$src2, $dst|$dst, $src2}", []>, TB;
+                 "imul{l} {$src2, $dst|$dst, $src2}",
+                 [(set R32:$dst, (mul R32:$src1, (load addr:$src2)))]>, TB;
 
 } // end Two Address instructions
 
@@ -1363,8 +1365,7 @@ def IMUL32rm : I<0xAF, MRMSrcMem, (ops R32:$dst, R32:$src1, i32mem:$src2),
 def IMUL16rri  : Ii16<0x69, MRMSrcReg,                      // R16 = R16*I16
                       (ops R16:$dst, R16:$src1, i16imm:$src2),
                       "imul{w} {$src2, $src1, $dst|$dst, $src1, $src2}",
-                      [(set R16:$dst, (mul R16:$src1, imm:$src2))]>,
-                 OpSize;
+                      [(set R16:$dst, (mul R16:$src1, imm:$src2))]>, OpSize;
 def IMUL32rri  : Ii32<0x69, MRMSrcReg,                      // R32 = R32*I32
                       (ops R32:$dst, R32:$src1, i32imm:$src2),
                       "imul{l} {$src2, $src1, $dst|$dst, $src1, $src2}",
@@ -1379,17 +1380,22 @@ def IMUL32rri8 : Ii8<0x6B, MRMSrcReg,                       // R32 = R32*I8
                      [(set R32:$dst, (mul R32:$src1, immSExt8:$src2))]>;
 
 def IMUL16rmi  : Ii16<0x69, MRMSrcMem,                      // R16 = [mem16]*I16
-                      (ops R32:$dst, i16mem:$src1, i16imm:$src2),
-                     "imul{w} {$src2, $src1, $dst|$dst, $src1, $src2}", []>, OpSize;
+                      (ops R16:$dst, i16mem:$src1, i16imm:$src2),
+                      "imul{w} {$src2, $src1, $dst|$dst, $src1, $src2}",
+                      [(set R16:$dst, (mul (load addr:$src1), imm:$src2))]>,
+                      OpSize;
 def IMUL32rmi  : Ii32<0x69, MRMSrcMem,                      // R32 = [mem32]*I32
                       (ops R32:$dst, i32mem:$src1, i32imm:$src2),
-                     "imul{l} {$src2, $src1, $dst|$dst, $src1, $src2}", []>;
+                      "imul{l} {$src2, $src1, $dst|$dst, $src1, $src2}",
+                      [(set R32:$dst, (mul (load addr:$src1), imm:$src2))]>;
 def IMUL16rmi8 : Ii8<0x6B, MRMSrcMem,                       // R16 = [mem16]*I8
-                     (ops R32:$dst, i16mem:$src1, i8imm :$src2),
-                     "imul{w} {$src2, $src1, $dst|$dst, $src1, $src2}", []>, OpSize;
+                     (ops R16:$dst, i16mem:$src1, i16i8imm :$src2),
+                     "imul{w} {$src2, $src1, $dst|$dst, $src1, $src2}",
+                     [(set R16:$dst, (mul (load addr:$src1), immSExt8:$src2))]>, OpSize;
 def IMUL32rmi8 : Ii8<0x6B, MRMSrcMem,                       // R32 = [mem32]*I8
-                     (ops R32:$dst, i32mem:$src1, i8imm: $src2),
-                     "imul{l} {$src2, $src1, $dst|$dst, $src1, $src2}", []>;
+                     (ops R32:$dst, i32mem:$src1, i32i8imm: $src2),
+                     "imul{l} {$src2, $src1, $dst|$dst, $src1, $src2}",
+                     [(set R32:$dst, (mul (load addr:$src1), immSExt8:$src2))]>;
 
 //===----------------------------------------------------------------------===//
 // Test instructions are just like AND, except they don't generate a result.