[MSP430] Add missing instruction forms

* Add missing mm, [r|m]n, [r|m]p instruction forms.
* Fix bit16mc instruction.

Patch by Kristina Bessonova!

Differential Revision: https://reviews.llvm.org/D56546

llvm-svn: 350902
diff --git a/llvm/test/CodeGen/MSP430/Inst16mm.ll b/llvm/test/CodeGen/MSP430/Inst16mm.ll
index 21fab42..af00a18 100644
--- a/llvm/test/CodeGen/MSP430/Inst16mm.ll
+++ b/llvm/test/CodeGen/MSP430/Inst16mm.ll
@@ -67,3 +67,22 @@
 ; CHECK-DAG:	mov	2(r1), 6(r1)
 ; CHECK-DAG:	mov	0(r1), 4(r1)
 }
+
+define void @cmp(i16* %g, i16* %i) {
+entry:
+; CHECK-LABEL: cmp:
+; CHECK: cmp 8(r12), 4(r13)
+  %add.ptr = getelementptr inbounds i16, i16* %g, i16 4
+  %0 = load i16, i16* %add.ptr, align 2
+  %add.ptr1 = getelementptr inbounds i16, i16* %i, i16 2
+  %1 = load i16, i16* %add.ptr1, align 2
+  %cmp = icmp sgt i16 %0, %1
+  br i1 %cmp, label %if.then, label %if.end
+
+if.then:                                          ; preds = %entry
+  store i16 0, i16* %g, align 2
+  br label %if.end
+
+if.end:                                           ; preds = %if.then, %entry
+  ret void
+}
diff --git a/llvm/test/CodeGen/MSP430/Inst8mm.ll b/llvm/test/CodeGen/MSP430/Inst8mm.ll
index b9848dc..5709728 100644
--- a/llvm/test/CodeGen/MSP430/Inst8mm.ll
+++ b/llvm/test/CodeGen/MSP430/Inst8mm.ll
@@ -53,3 +53,21 @@
 	ret void
 }
 
+define void @cmp(i8* %g, i8* %i) {
+entry:
+; CHECK-LABEL: cmp:
+; CHECK: cmp.b 4(r12), 2(r13)
+  %add.ptr = getelementptr inbounds i8, i8* %g, i16 4
+  %0 = load i8, i8* %add.ptr, align 1
+  %add.ptr1 = getelementptr inbounds i8, i8* %i, i16 2
+  %1 = load i8, i8* %add.ptr1, align 1
+  %cmp = icmp sgt i8 %0, %1
+  br i1 %cmp, label %if.then, label %if.end
+
+if.then:                                          ; preds = %entry
+  store i8 0, i8* %g, align 2
+  br label %if.end
+
+if.end:                                           ; preds = %if.then, %entry
+  ret void
+}
diff --git a/llvm/test/CodeGen/MSP430/InstII.ll b/llvm/test/CodeGen/MSP430/InstII.ll
new file mode 100644
index 0000000..596d5b0
--- /dev/null
+++ b/llvm/test/CodeGen/MSP430/InstII.ll
@@ -0,0 +1,68 @@
+; RUN: llc -march=msp430 < %s | FileCheck %s
+target datalayout = "e-p:16:8:8-i8:8:8-i16:8:8-i32:8:8"
+target triple = "msp430-generic-generic"
+
+define void @rra8m(i8* %i) {
+entry:
+; CHECK-LABEL: rra8m:
+; CHECK: rra.b 2(r12)
+  %0 = getelementptr inbounds i8, i8* %i, i16 2
+  %1 = load i8, i8* %0, align 1
+  %shr = ashr i8 %1, 1
+  store i8 %shr, i8* %0, align 1
+  ret void
+}
+
+define void @rra16m(i16* %i) {
+entry:
+; CHECK-LABEL: rra16m:
+; CHECK: rra 4(r12)
+  %0 = getelementptr inbounds i16, i16* %i, i16 2
+  %1 = load i16, i16* %0, align 2
+  %shr = ashr i16 %1, 1
+  store i16 %shr, i16* %0, align 2
+  ret void
+}
+
+; TODO: `clrc; rrc.b 2(r12)` is expected
+define void @rrc8m(i8* %g) {
+entry:
+; CHECK-LABEL: rrc8m:
+; CHECK: mov.b 2(r12), r13
+; CHECK: clrc
+; CHECK: rrc.b r13
+; CHECK: mov.b r13, 2(r12)
+  %add.ptr = getelementptr inbounds i8, i8* %g, i16 2
+  %0 = load i8, i8* %add.ptr, align 1
+  %1 = lshr i8 %0, 1
+  store i8 %1, i8* %add.ptr, align 1
+  ret void
+}
+
+; TODO: `clrc; rrc 4(r12)` is expected
+define void @rrc16m(i16* %g) {
+entry:
+; CHECK-LABEL: rrc16m:
+; CHECK: mov 4(r12), r13
+; CHECK: clrc
+; CHECK: rrc r13
+; CHECK: mov r13, 4(r12)
+  %add.ptr = getelementptr inbounds i16, i16* %g, i16 2
+  %0 = load i16, i16* %add.ptr, align 2
+  %shr = lshr i16 %0, 1
+  store i16 %shr, i16* %add.ptr, align 2
+  ret void
+}
+
+define void @sxt16m(i16* %x) {
+entry:
+; CHECK-LABEL: sxt16m:
+; CHECK: sxt 4(r12)
+  %add.ptr = getelementptr inbounds i16, i16* %x, i16 2
+  %0 = bitcast i16* %add.ptr to i8*
+  %1 = load i8, i8* %0, align 1
+  %conv = sext i8 %1 to i16
+  store i16 %conv, i16* %add.ptr, align 2
+  ret void
+}
+
diff --git a/llvm/test/MC/Disassembler/MSP430/msp430.txt b/llvm/test/MC/Disassembler/MSP430/msp430.txt
index c7d6ff5..8e06f9d 100644
--- a/llvm/test/MC/Disassembler/MSP430/msp430.txt
+++ b/llvm/test/MC/Disassembler/MSP430/msp430.txt
@@ -19,9 +19,10 @@
 0x1f 0x40 0x2a 0x00           # CHECK: mov 42, r15
 0xb0 0x12 0x81 0x01           # CHECK: call #385
 0x97 0x12 0x06 0x00           # CHECK: call 6(r7)
-0xa7 0xb2 0x02 0x00           # CHECK: bit #34, 2(r7)
+0xa7 0xb2 0x02 0x00           # CHECK: bit #4, 2(r7)
 0xa9 0x57 0x08 0x00           # CHECK: add @r7, 8(r9)
 0xb7 0xe7 0xfe 0xff           # CHECK: xor @r7+, -2(r7)
 
 0xbf 0x40 0x2a 0x00 0x0c 0x00 # CHECK: mov #42, 12(r15)
+0xb7 0xb0 0x22 0x00 0x02 0x00 # CHECK: bit #34, 2(r7)
 0x9a 0xb9 0x10 0x00 0x08 0x00 # CHECK: bit 16(r9), 8(r10)
diff --git a/llvm/test/MC/MSP430/addrmode.s b/llvm/test/MC/MSP430/addrmode.s
index 46051c0..7e389b6 100644
--- a/llvm/test/MC/MSP430/addrmode.s
+++ b/llvm/test/MC/MSP430/addrmode.s
@@ -93,6 +93,8 @@
 
   call r7
   call 6(r7)
+  call @r7
+  call @r7+
   call disp+6(r7)
   call &disp
   call disp
@@ -100,11 +102,61 @@
 
 ; CHECK: call r7               ; encoding: [0x87,0x12]
 ; CHECK: call 6(r7)            ; encoding: [0x97,0x12,0x06,0x00]
+; CHECK: call @r7              ; encoding: [0xa7,0x12]
+; CHECK: call @r7+             ; encoding: [0xb7,0x12]
 ; CHECK: call disp+6(r7)       ; encoding: [0x97,0x12,A,A]
 ; CHECK: call &disp            ; encoding: [0x92,0x12,A,A]
 ; CHECK: call disp             ; encoding: [0x90,0x12,A,A]
 ; CHECK: call #disp            ; encoding: [0xb0,0x12,A,A]
 
+  rra r7      ; CHECK: rra r7                ; encoding: [0x07,0x11]
+  rra 2(r7)   ; CHECK: rra 2(r7)             ; encoding: [0x17,0x11,0x02,0x00]
+  rra @r7     ; CHECK: rra @r7               ; encoding: [0x27,0x11]
+  rra @r7+    ; CHECK: rra @r7+              ; encoding: [0x37,0x11]
+
+  rrc r7      ; CHECK: rrc r7                ; encoding: [0x07,0x10]
+  rrc 2(r7)   ; CHECK: rrc 2(r7)             ; encoding: [0x17,0x10,0x02,0x00]
+  rrc @r7     ; CHECK: rrc @r7               ; encoding: [0x27,0x10]
+  rrc @r7+    ; CHECK: rrc @r7+              ; encoding: [0x37,0x10]
+
+  swpb r7     ; CHECK: swpb r7               ; encoding: [0x87,0x10]
+  swpb 2(r7)  ; CHECK: swpb 2(r7)            ; encoding: [0x97,0x10,0x02,0x00]
+  swpb @r7    ; CHECK: swpb @r7              ; encoding: [0xa7,0x10]
+  swpb @r7+   ; CHECK: swpb @r7+             ; encoding: [0xb7,0x10]
+
+  sxt r7      ; CHECK: sxt r7                ; encoding: [0x87,0x11]
+  sxt 2(r7)   ; CHECK: sxt 2(r7)             ; encoding: [0x97,0x11,0x02,0x00]
+  sxt @r7     ; CHECK: sxt @r7               ; encoding: [0xa7,0x11]
+  sxt @r7+    ; CHECK: sxt @r7+              ; encoding: [0xb7,0x11]
+
+  cmp r5, r7        ; CHECK: cmp r5, r7        ; encoding: [0x07,0x95]
+  cmp 2(r5), r7     ; CHECK: cmp 2(r5), r7     ; encoding: [0x17,0x95,0x02,0x00]
+  cmp #-1, r7       ; CHECK: cmp #-1, r7       ; encoding: [0x37,0x93]
+  cmp #42, r7       ; CHECK: cmp #42, r7       ; encoding: [0x37,0x90,0x2a,0x00]
+  cmp @r5, r7       ; CHECK: cmp @r5, r7       ; encoding: [0x27,0x95]
+  cmp @r5+, r7      ; CHECK: cmp @r5+, r7      ; encoding: [0x37,0x95]
+
+  cmp r5, 2(r7)     ; CHECK: cmp r5, 2(r7)     ; encoding: [0x87,0x95,0x02,0x00]
+  cmp 2(r7), 2(r7)  ; CHECK: cmp 2(r7), 2(r7)  ; encoding: [0x97,0x97,0x02,0x00,0x02,0x00]
+  cmp #-1, 2(r7)    ; CHECK: cmp #-1, 2(r7)    ; encoding: [0xb7,0x93,0x02,0x00]
+  cmp #42, 2(r7)    ; CHECK: cmp #42, 2(r7)    ; encoding: [0xb7,0x90,0x2a,0x00,0x02,0x00]
+  cmp @r5, 2(r7)    ; CHECK: cmp @r5, 2(r7)    ; encoding: [0xa7,0x95,0x02,0x00]
+  cmp @r5+, 2(r7)   ; CHECK: cmp @r5+, 2(r7)   ; encoding: [0xb7,0x95,0x02,0x00]
+
+  bit r5, r7        ; CHECK: bit r5, r7        ; encoding: [0x07,0xb5]
+  bit 2(r5), r7     ; CHECK: bit 2(r5), r7     ; encoding: [0x17,0xb5,0x02,0x00]
+  bit #-1, r7       ; CHECK: bit #-1, r7       ; encoding: [0x37,0xb3]
+  bit #42, r7       ; CHECK: bit #42, r7       ; encoding: [0x37,0xb0,0x2a,0x00]
+  bit @r5, r7       ; CHECK: bit @r5, r7       ; encoding: [0x27,0xb5]
+  bit @r5+, r7      ; CHECK: bit @r5+, r7      ; encoding: [0x37,0xb5]
+
+  bit r5, 2(r7)     ; CHECK: bit r5, 2(r7)     ; encoding: [0x87,0xb5,0x02,0x00]
+  bit 2(r7), 2(r7)  ; CHECK: bit 2(r7), 2(r7)  ; encoding: [0x97,0xb7,0x02,0x00,0x02,0x00]
+  bit #-1, 2(r7)    ; CHECK: bit #-1, 2(r7)    ; encoding: [0xb7,0xb3,0x02,0x00]
+  bit #42, 2(r7)    ; CHECK: bit #42, 2(r7)    ; encoding: [0xb7,0xb0,0x2a,0x00,0x02,0x00]
+  bit @r5, 2(r7)    ; CHECK: bit @r5, 2(r7)    ; encoding: [0xa7,0xb5,0x02,0x00]
+  bit @r5+, 2(r7)   ; CHECK: bit @r5+, 2(r7)   ; encoding: [0xb7,0xb5,0x02,0x00]
+
 disp:
   .word 0xcafe
   .word 0xbabe
diff --git a/llvm/test/MC/MSP430/const.s b/llvm/test/MC/MSP430/const.s
index f5cca10..dfaf32f 100644
--- a/llvm/test/MC/MSP430/const.s
+++ b/llvm/test/MC/MSP430/const.s
@@ -1,10 +1,13 @@
 ; RUN: llvm-mc -triple msp430 -show-encoding < %s | FileCheck %s
-  mov #4, r15 ; CHECK: mov #4, r15 ; encoding: [0x2f,0x42]
-  mov #8, r15 ; CHECK: mov #8, r15 ; encoding: [0x3f,0x42]
-  mov #0, r15 ; CHECK: clr r15     ; encoding: [0x0f,0x43]
-  mov #1, r15 ; CHECK: mov #1, r15 ; encoding: [0x1f,0x43]
-  mov #2, r15 ; CHECK: mov #2, r15 ; encoding: [0x2f,0x43]
-  mov #-1, r7 ; CHECK: mov #-1, r7 ; encoding: [0x37,0x43]
 
-  push #8     ; CHECK: push #8     ; encoding: [0x32,0x12]
-  push #42    ; CHECK: push #42    ; encoding: [0x30,0x12,0x2a,0x00]
+  mov #4, r15   ; CHECK: mov #4, r15   ; encoding: [0x2f,0x42]
+  mov #8, r15   ; CHECK: mov #8, r15   ; encoding: [0x3f,0x42]
+  mov #0, r15   ; CHECK: clr r15       ; encoding: [0x0f,0x43]
+  mov #1, r15   ; CHECK: mov #1, r15   ; encoding: [0x1f,0x43]
+  mov #2, r15   ; CHECK: mov #2, r15   ; encoding: [0x2f,0x43]
+  mov #-1, r7   ; CHECK: mov #-1, r7   ; encoding: [0x37,0x43]
+
+  push #8       ; CHECK: push #8       ; encoding: [0x32,0x12]
+  push #42      ; CHECK: push #42      ; encoding: [0x30,0x12,0x2a,0x00]
+
+  bit #1, 0(r7) ; CHECK: bit #1, 0(r7) ; encoding: [0x97,0xb3,0x00,0x00]