6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2024-12-14 11:32:34 +00:00
Code Issues Projects Releases Wiki Activity

Add assertion

Browse Source 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5321 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2003-01-16 02:22:08 +00:00
parent f158da2f78
commit 78d6db5627
1 changed files with 5 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
lib/CodeGen/PrologEpilogInserter.cpp
View File

@ -186,20 +186,23 @@ void PEI::calculateFrameObjectOffsets(MachineFunction &Fn) {
// Loop over all of the stack objects, assigning sequential addresses... // Loop over all of the stack objects, assigning sequential addresses...
MachineFrameInfo *FFI = Fn.getFrameInfo(); MachineFrameInfo *FFI = Fn.getFrameInfo();
unsigned StackAlign = TFI.getStackAlignment();
// Start at the beginning of the local area... // Start at the beginning of the local area...
int Offset = TFI.getOffsetOfLocalArea(); int Offset = TFI.getOffsetOfLocalArea();
for (unsigned i = 0, e = FFI->getObjectIndexEnd(); i != e; ++i) { for (unsigned i = 0, e = FFI->getObjectIndexEnd(); i != e; ++i) {
Offset += FFI->getObjectSize(i); // Allocate Size bytes... Offset += FFI->getObjectSize(i); // Allocate Size bytes...
unsigned Align = FFI->getObjectAlignment(i); unsigned Align = FFI->getObjectAlignment(i);
assert(Align < StackAlign && "Cannot align stack object to higher "
"alignment boundary than the stack itself!");
Offset = (Offset+Align-1)/Align*Align; // Adjust to Alignment boundary... Offset = (Offset+Align-1)/Align*Align; // Adjust to Alignment boundary...
FFI->setObjectOffset(i, -Offset); // Set the computed offset FFI->setObjectOffset(i, -Offset); // Set the computed offset
} }
// Align the final stack pointer offset... // Align the final stack pointer offset...
unsigned StackAlign = TFI.getStackAlignment(); Offset = (Offset+StackAlignment-1)/StackAlignment*StackAlignment;
Offset = (Offset+StackAlign-1)/StackAlign*StackAlign;
// Set the final value of the stack pointer... // Set the final value of the stack pointer...
FFI->setStackSize(Offset-TFI.getOffsetOfLocalArea()); FFI->setStackSize(Offset-TFI.getOffsetOfLocalArea());