RPCS3/llvm
1
0
Fork 0
mirror of https://github.com/RPCS3/llvm.git synced 2025-01-05 03:10:41 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

add some optional flags to affect the way advance works.

Browse Source 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172928 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2013-01-19 23:31:15 +00:00
parent 00a312c478
commit 344fc23d23
1 changed files with 9 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
include/llvm/Bitcode/BitstreamReader.h
View File

@ -269,14 +269,19 @@ public:
return BitStream;
}
/// Flags that modify the behavior of advance().
enum {
AF_DontPopBlockAtEnd = 1
};
/// advance - Advance the current bitstream, returning the next entry in the
/// stream.
BitstreamEntry advance() {
BitstreamEntry advance(unsigned Flags = 0) {
while (1) {
unsigned Code = ReadCode();
if (Code == bitc::END_BLOCK) {
if (ReadBlockEnd())
// Pop the end of the block unless Flags tells us not to.
if (!(Flags & AF_DontPopBlockAtEnd) && ReadBlockEnd())
return BitstreamEntry::getError();
return BitstreamEntry::getEndBlock();
}
@ -297,10 +302,10 @@ public:
/// advanceSkippingSubblocks - This is a convenience function for clients that
/// don't expect any subblocks. This just skips over them automatically.
BitstreamEntry advanceSkippingSubblocks() {
BitstreamEntry advanceSkippingSubblocks(unsigned Flags = 0) {
while (1) {
// If we found a normal entry, return it.
BitstreamEntry Entry = advance();
BitstreamEntry Entry = advance(Flags);
if (Entry.Kind != BitstreamEntry::SubBlock)
return Entry;