Intel syntax: Parse ... PTR [-8]

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148570 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/X86/AsmParser/X86AsmParser.cpp b/lib/Target/X86/AsmParser/X86AsmParser.cpp
index 67c4a647e5558d281059a50054dd096032882eeb..83ab6a604cfc3d7d36a9ee85661067503975acf2 100644 (file)
--- a/lib/Target/X86/AsmParser/X86AsmParser.cpp
+++ b/lib/Target/X86/AsmParser/X86AsmParser.cpp
@@ -669,6 +669,11 @@ X86Operand *X86AsmParser::ParseIntelBracExpression(unsigned Size) {
     return ErrorOperand(End, "expected ']' token!");
   Parser.Lex();
   End = Parser.getTok().getLoc();
+
+  // handle [-42]
+  if (!BaseReg && !IndexReg)
+    return X86Operand::CreateMem(Disp, Start, End, Size);
+
   return X86Operand::CreateMem(SegReg, Disp, BaseReg, IndexReg, Scale,
                                Start, End, Size);
 }

diff --git a/test/MC/X86/intel-syntax-encoding.s b/test/MC/X86/intel-syntax-encoding.s
index 32e7750602983d257787d3dc5b75b45d9f66b04c..efd7b6b66691aa4cdc9123f2c6f42200bc4ef343 100644 (file)
--- a/test/MC/X86/intel-syntax-encoding.s
+++ b/test/MC/X86/intel-syntax-encoding.s
@@ -34,4 +34,5 @@
 LBB0_3:
 // CHECK: encoding: [0xeb,A]
        jmp     LBB0_3
-       
+// CHECK: encoding: [0xf2,0x0f,0x10,0x2c,0x25,0xf8,0xff,0xff,0xff]
+        movsd   XMM5, QWORD PTR [-8]