6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-06-13 04:38:24 +00:00
Code Issues Projects Releases Wiki Activity

Add 'musttail' marker to call instructions

Browse Source 
This is similar to the 'tail' marker, except that it guarantees that
tail call optimization will occur.  It also comes with convervative IR
verification rules that ensure that tail call optimization is possible.

Reviewers: nicholas

Differential Revision: http://llvm-reviews.chandlerc.com/D3240

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207143 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Reid Kleckner
2014-04-24 20:14:34 +00:00
parent 870200a833
commit 710c1a449d
21 changed files with 334 additions and 30 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
lib/Bitcode/Writer/BitcodeWriter.cpp
View File

@ -1469,7 +1469,8 @@ static void WriteInstruction(const Instruction &I, unsigned InstID,
Code = bitc::FUNC_CODE_INST_CALL;
Vals.push_back(VE.getAttributeID(CI.getAttributes()));
Vals.push_back((CI.getCallingConv() << 1) | unsigned(CI.isTailCall()));
Vals.push_back((CI.getCallingConv() << 1) | unsigned(CI.isTailCall()) |
unsigned(CI.isMustTailCall()) << 14);
PushValueAndType(CI.getCalledValue(), InstID, Vals, VE); // Callee
// Emit value #'s for the fixed parameters.