commit fd652df8b36a9d3e6b09ae2b9f7bcb07e88fdfaa
author Jiangning Liu <jiangning.liu@arm.com> Thu Aug 02 08:29:50 2012 +0000
committer Jiangning Liu <jiangning.liu@arm.com> Thu Aug 02 08:29:50 2012 +0000
tree 5d0ce3d875c3c64330d094500418b1470087d2ad
parent c1b7ca5ba28ded2d83ae534c8e072c2538d43295

Fix #13035, a bug around Thumb instruction LDRD/STRD with negative #0 offset index issue.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161162 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Target/ARM/AsmParser/ARMAsmParser.cpp

diff --git a/lib/Target/ARM/AsmParser/ARMAsmParser.cpp b/lib/Target/ARM/AsmParser/ARMAsmParser.cpp
index 89f7ec2..c3610c8 100644
--- a/lib/Target/ARM/AsmParser/ARMAsmParser.cpp
+++ b/lib/Target/ARM/AsmParser/ARMAsmParser.cpp
@@ -1040,7 +1040,8 @@
     // Immediate offset a multiple of 4 in range [-1020, 1020].
     if (!Memory.OffsetImm) return true;
     int64_t Val = Memory.OffsetImm->getValue();
-    return Val >= -1020 && Val <= 1020 && (Val & 3) == 0;
+    // Special case, #-0 is INT32_MIN.
+    return (Val >= -1020 && Val <= 1020 && (Val & 3) == 0) || Val == INT32_MIN;
   }
   bool isMemImm0_1020s4Offset() const {
     if (!isMemory() || Memory.OffsetRegNum != 0 || Memory.Alignment != 0)