6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-11-01 00:17:01 +00:00
Code Issues Projects Releases Wiki Activity

stack frame fix and zero FP reg fix

Browse Source 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19857 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Andrew Lenharth
2005-01-27 08:31:19 +00:00
parent 10b400705d
commit 04c868ef50
2 changed files with 19 additions and 12 deletions
Download Patch File Download Diff File Expand all files Collapse all files

27
lib/Target/Alpha/AlphaRegisterInfo.cpp
View File

@@ -208,7 +208,7 @@ void AlphaRegisterInfo::emitPrologue(MachineFunction &MF) const {
if (NumBytes <= 32767) {
MI=BuildMI(Alpha::LDA, 2, Alpha::R30).addImm(-NumBytes).addReg(Alpha::R30);
MBB.insert(MBBI, MI);
} else if (NumBytes <= 32767 * 65536) {
} else if ((unsigned long)NumBytes <= (unsigned long)32767 * (unsigned long)65536) {
long y = NumBytes / 65536;
if (NumBytes % 65536 > 32767)
++y;
@@ -217,7 +217,7 @@ void AlphaRegisterInfo::emitPrologue(MachineFunction &MF) const {
MI=BuildMI(Alpha::LDA, 2, Alpha::R30).addImm(-(NumBytes - y * 65536)).addReg(Alpha::R30);
MBB.insert(MBBI, MI);
} else {
std::cerr << "Too big a stack frame\n";
std::cerr << "Too big a stack frame at " << NumBytes << "\n";
abort();
}
}
@@ -235,14 +235,21 @@ void AlphaRegisterInfo::emitEpilogue(MachineFunction &MF,
if (NumBytes != 0)
{
if (NumBytes <= 32000) //FIXME: do this better
{
MI=BuildMI(Alpha::LDA, 2, Alpha::R30).addImm(NumBytes).addReg(Alpha::R30);
MBB.insert(MBBI, MI);
} else {
std::cerr << "Too big a stack frame\n";
abort();
}
if (NumBytes <= 32767) {
MI=BuildMI(Alpha::LDA, 2, Alpha::R30).addImm(NumBytes).addReg(Alpha::R30);
MBB.insert(MBBI, MI);
} else if ((unsigned long)NumBytes <= (unsigned long)32767 * (unsigned long)65536) {
long y = NumBytes / 65536;
if (NumBytes % 65536 > 32767)
++y;
MI=BuildMI(Alpha::LDAH, 2, Alpha::R30).addImm(y).addReg(Alpha::R30);
MBB.insert(MBBI, MI);
MI=BuildMI(Alpha::LDA, 2, Alpha::R30).addImm(NumBytes - y * 65536).addReg(Alpha::R30);
MBB.insert(MBBI, MI);
} else {
std::cerr << "Too big a stack frame at " << NumBytes << "\n";
abort();
}
}
}