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authorChris Lattner <sabre@nondot.org>2004-01-14 23:35:21 +0000
committerChris Lattner <sabre@nondot.org>2004-01-14 23:35:21 +0000
commit9e893e8a3d57492d40c44877736703c9a2882e73 (patch)
tree1e16d3974f9a003b9a4d1ca751ccd80fecb239b5 /lib/Bytecode/Reader/Reader.cpp
parentdcea63026ff5e8baf73edb26cc11e34e2a627dce (diff)
Version 1.2 now supports encoding strings as a special case, to avoid having
to emit all of those sbyte constants. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10863 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Bytecode/Reader/Reader.cpp')
-rw-r--r--lib/Bytecode/Reader/Reader.cpp7
1 files changed, 5 insertions, 2 deletions
diff --git a/lib/Bytecode/Reader/Reader.cpp b/lib/Bytecode/Reader/Reader.cpp
index a0b40be6e3..7a6fa87511 100644
--- a/lib/Bytecode/Reader/Reader.cpp
+++ b/lib/Bytecode/Reader/Reader.cpp
@@ -552,8 +552,8 @@ void BytecodeParser::ParseVersionInfo(const unsigned char *&Buf,
switch (RevisionNum) {
case 2: // LLVM pre-1.0 release: will be deleted on the next rev
- // Version #2 added information about all 4 linkage types instead of just
- // having internal and external.
+ // Version #2 only supported 4 linkage types. It didn't support weak
+ // linkage.
hasExtendedLinkageSpecs = false;
hasOldStyleVarargs = true;
hasVarArgCallPadding = true;
@@ -561,8 +561,11 @@ void BytecodeParser::ParseVersionInfo(const unsigned char *&Buf,
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.
break;
case 1: // LLVM 1.2 release version
+ // LLVM 1.2 added explicit support for emitting strings efficiently.
break;
default: