[AVR] Fixed relative jump MC tests

Author: Dylan McKay

lib/Target/AVR/AsmParser/AVRAsmParser.cpp

@@ -455,6 +455,10 @@ bool AVRAsmParser::ParseOperand(OperandVector &Operands,
     // for PC-relative call.
     case AsmToken::Dot: {
       Parser.Lex(); // eat `.`
+      if(!Parser.parseExpression(EVal, E)) {
+        Operands.push_back(AVROperand::CreateImm(EVal, S, E));
+        return false;
+      }
     }
     case AsmToken::Plus:
     case AsmToken::Minus: {

test/MC/AVR/inst-brbc.s

@@ -3,8 +3,8 @@
 
 foo:
 
-  brbc 3, 8
-  brbc 0, 0
+  brbc 3, .+8
+  brbc 0, .+0
 
 ; CHECK: brbc 3, .+8                   ; encoding: [0x1b,0xf4]
 ; CHECK: brbc 0, .+0                   ; encoding: [0xf0,0xf7]

test/MC/AVR/inst-rcall.s

@@ -3,12 +3,12 @@
 
 foo:
 
-  rcall   0 
-  rcall  -8
-  rcall   12
-  rcall   46
-
-; CHECK: rcall  0                   ; encoding: [0x00,0xdf]
-; CHECK: rcall -8                   ; encoding: [0xfa,0xdf]
-; CHECK: rcall  12                  ; encoding: [0x03,0xd0]
-; CHECK: rcall  46                  ; encoding: [0x13,0xd0]
+  rcall  .+0
+  rcall  .-8
+  rcall  .+12
+  rcall  .+46
+
+; CHECK: rcall  .+0                   ; encoding: [0x00,0xdf]
+; CHECK: rcall  .+8                   ; encoding: [0xfa,0xdf]
+; CHECK: rcall  .+12                  ; encoding: [0x03,0xd0]
+; CHECK: rcall  .+46                  ; encoding: [0x13,0xd0]

test/MC/AVR/inst-rjmp.s

@@ -3,12 +3,12 @@
 
 foo:
 
-  rjmp   2 
-  rjmp  -2
-  rjmp   8
-  rjmp   0
-
-; CHECK: rjmp  2                   ; encoding: [0x00,0xc0]
-; CHECK: rjmp -2                   ; encoding: [0xfd,0xcf]
-; CHECK: rjmp  8                   ; encoding: [0x01,0xc0]
-; CHECK: rjmp  0                   ; encoding: [0xfc,0xcf]
+  rjmp  .+2
+  rjmp  .-2
+  rjmp  .+8
+  rjmp  .+0
+
+; CHECK: rjmp  .+2                   ; encoding: [0x00,0xc0]
+; CHECK: rjmp  .-2                   ; encoding: [0xfd,0xcf]
+; CHECK: rjmp  .+8                   ; encoding: [0x01,0xc0]
+; CHECK: rjmp  .+0                   ; encoding: [0xfc,0xcf]