[ARM] Fix ubig32_t read in ARMAttributeParser

Now using support functions to read data instead of trying to
perform casts.

Differential Revision: https://reviews.llvm.org/D28669

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@291903 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Support/ARMAttributeParser.cpp b/lib/Support/ARMAttributeParser.cpp
index 5d9b2306b9aed9a57a8c9744e60d3ae27a2f35b7..6ab072d683d61a46bb3a774de03038b264cd9102 100644 (file)
--- a/lib/Support/ARMAttributeParser.cpp
+++ b/lib/Support/ARMAttributeParser.cpp
@@ -685,9 +685,9 @@ void ARMAttributeParser::Parse(ArrayRef<uint8_t> Section, bool isLittle) {
   unsigned SectionNumber = 0;
 
   while (Offset < Section.size()) {
-    uint32_t SectionLength = isLittle ?
-      *reinterpret_cast<const support::ulittle32_t*>(Section.data() + Offset) :
-      *reinterpret_cast<const support::ubig32_t*>(Section.data() + Offset);
+    uint32_t SectionLength =
+        isLittle ? support::endian::read32le(Section.data() + Offset)
+                 : support::endian::read32be(Section.data() + Offset);
 
     if (SW) {
       SW->startLine() << "Section " << ++SectionNumber << " {\n";