Implement support for a new LLVM 1.3 bytecode format, which uses uint's
to index into structure types and allows arbitrary 32- and 64-bit integer
types to index into sequential types.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12651 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Bytecode/Reader/Reader.cpp b/lib/Bytecode/Reader/Reader.cpp
index 54c9181..2f0879b 100644
--- a/lib/Bytecode/Reader/Reader.cpp
+++ b/lib/Bytecode/Reader/Reader.cpp
@@ -647,12 +647,10 @@
// Default values for the current bytecode version
hasInconsistentModuleGlobalInfo = false;
hasExplicitPrimitiveZeros = false;
+ hasRestrictedGEPTypes = false;
switch (RevisionNum) {
case 0: // LLVM 1.0, 1.1 release version
- // Compared to rev #2, we added support for weak linkage, a more dense
- // encoding, and better varargs support.
-
// Base LLVM 1.0 bytecode format.
hasInconsistentModuleGlobalInfo = true;
hasExplicitPrimitiveZeros = true;
@@ -663,6 +661,13 @@
// Also, it fixed the problem where the size of the ModuleGlobalInfo block
// included the size for the alignment at the end, where the rest of the
// blocks did not.
+
+ // LLVM 1.2 and before required that GEP indices be ubyte constants for
+ // structures and longs for sequential types.
+ hasRestrictedGEPTypes = true;
+
+ // FALL THROUGH
+ case 2: // LLVM 1.3 release version
break;
default: