From: Marina Yatsina <marina.yatsina@intel.com>
Date: Tue, 11 Aug 2015 10:43:04 +0000 (+0000)
Subject: [X86] Fix imul alias for intel syntax
X-Git-Url: http://plrg.eecs.uci.edu/git/?a=commitdiff_plain;h=b54962b9a08b1f31d96252a9f52825472e7cfdb5;p=oota-llvm.git

[X86] Fix imul alias for intel syntax

The "imul reg, imm" alias is not defined for intel syntax.
In intel syntax there is no w/l/q suffix for the imul instruction.

Differential Revision: http://reviews.llvm.org/D11887


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@244582 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Target/X86/X86InstrInfo.td b/lib/Target/X86/X86InstrInfo.td
index 3fb44172c64..8e1d5b76d2e 100644
--- a/lib/Target/X86/X86InstrInfo.td
+++ b/lib/Target/X86/X86InstrInfo.td
@@ -2806,12 +2806,12 @@ def : InstAlias<"jmp {*}$dst",      (JMP16m  i16mem:$dst), 0>, Requires<[In16Bit
 
 
 // "imul <imm>, B" is an alias for "imul <imm>, B, B".
-def : InstAlias<"imulw {$imm, $r|$r, $imm}", (IMUL16rri  GR16:$r, GR16:$r, i16imm:$imm), 0>;
-def : InstAlias<"imulw {$imm, $r|$r, $imm}", (IMUL16rri8 GR16:$r, GR16:$r, i16i8imm:$imm), 0>;
-def : InstAlias<"imull {$imm, $r|$r, $imm}", (IMUL32rri  GR32:$r, GR32:$r, i32imm:$imm), 0>;
-def : InstAlias<"imull {$imm, $r|$r, $imm}", (IMUL32rri8 GR32:$r, GR32:$r, i32i8imm:$imm), 0>;
-def : InstAlias<"imulq {$imm, $r|$r, $imm}", (IMUL64rri32 GR64:$r, GR64:$r, i64i32imm:$imm), 0>;
-def : InstAlias<"imulq {$imm, $r|$r, $imm}", (IMUL64rri8 GR64:$r, GR64:$r, i64i8imm:$imm), 0>;
+def : InstAlias<"imul{w} {$imm, $r|$r, $imm}", (IMUL16rri  GR16:$r, GR16:$r, i16imm:$imm), 0>;
+def : InstAlias<"imul{w} {$imm, $r|$r, $imm}", (IMUL16rri8 GR16:$r, GR16:$r, i16i8imm:$imm), 0>;
+def : InstAlias<"imul{l} {$imm, $r|$r, $imm}", (IMUL32rri  GR32:$r, GR32:$r, i32imm:$imm), 0>;
+def : InstAlias<"imul{l} {$imm, $r|$r, $imm}", (IMUL32rri8 GR32:$r, GR32:$r, i32i8imm:$imm), 0>;
+def : InstAlias<"imul{q} {$imm, $r|$r, $imm}", (IMUL64rri32 GR64:$r, GR64:$r, i64i32imm:$imm), 0>;
+def : InstAlias<"imul{q} {$imm, $r|$r, $imm}", (IMUL64rri8 GR64:$r, GR64:$r, i64i8imm:$imm), 0>;
 
 // inb %dx -> inb %al, %dx
 def : InstAlias<"inb\t{%dx|dx}", (IN8rr), 0>;
diff --git a/test/MC/X86/intel-syntax.s b/test/MC/X86/intel-syntax.s
index 00295589199..98bec04f50f 100644
--- a/test/MC/X86/intel-syntax.s
+++ b/test/MC/X86/intel-syntax.s
@@ -681,3 +681,10 @@ outsd
 // CHECK: outsb (%rsi), %dx
 // CHECK: outsw (%rsi), %dx
 // CHECK: outsl (%rsi), %dx
+
+imul bx, 123
+imul ebx, 123
+imul rbx, 123
+// CHECK: imulw $123, %bx
+// CHECK: imull $123, %ebx
+// CHECK: imulq $123, %rbx