[llvm] r204898 - ARM: raise error message when complex SO expressions can't really be

[Jiangning Liu]

Author: jiangning
Date: Thu Mar 27 02:42:58 2014
New Revision: 204898

URL: http://llvm.org/viewvc/llvm-project?rev=204898&view=rev
Log:
ARM: raise error message when complex SO expressions can't really be
solved as a constant at compilation time.

Added:
    llvm/trunk/test/MC/ARM/label_offset.s
Modified:
    llvm/trunk/lib/Target/ARM/AsmParser/ARMAsmParser.cpp

Modified: llvm/trunk/lib/Target/ARM/AsmParser/ARMAsmParser.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/ARM/AsmParser/ARMAsmParser.cpp?rev=204898&r1=204897&r2=204898&view=diff
==============================================================================
--- llvm/trunk/lib/Target/ARM/AsmParser/ARMAsmParser.cpp (original)
+++ llvm/trunk/lib/Target/ARM/AsmParser/ARMAsmParser.cpp Thu Mar 27 02:42:58 2014
@@ -9357,7 +9357,7 @@ unsigned ARMAsmParser::validateTargetOpe
       const MCExpr *SOExpr = Op->getImm();
       int64_t Value;
       if (!SOExpr->EvaluateAsAbsolute(Value))
-        return Match_Success;
+        return Match_InvalidOperand;
       assert((Value >= INT32_MIN && Value <= INT32_MAX) &&
              "expression value must be representiable in 32 bits");
     }

Added: llvm/trunk/test/MC/ARM/label_offset.s
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/MC/ARM/label_offset.s?rev=204898&view=auto
==============================================================================
--- llvm/trunk/test/MC/ARM/label_offset.s (added)
+++ llvm/trunk/test/MC/ARM/label_offset.s Thu Mar 27 02:42:58 2014
@@ -0,0 +1,8 @@
+@ RUN: not llvm-mc -triple=armv7-linux-gnuabi -filetype=obj < %s 2>&1 | FileCheck %s
+
+.text
+    cmp r2, #(l2 - l1) >> 6
+@ CHECK: error: invalid operand for instruction
+
+l1:
+l2: