[llvm-commits] CVS: llvm/lib/Target/PowerPC/PPC32CodeEmitter.cpp

[Chris Lattner]

Changes in directory llvm/lib/Target/PowerPC:

PPC32CodeEmitter.cpp updated: 1.28 -> 1.29
---
Log message:

Add completely untested support for mtcrf/mfcrf encoding


---
Diffs of the changes:  (+7 -0)

 PPC32CodeEmitter.cpp |    7 +++++++
 1 files changed, 7 insertions(+)


Index: llvm/lib/Target/PowerPC/PPC32CodeEmitter.cpp
diff -u llvm/lib/Target/PowerPC/PPC32CodeEmitter.cpp:1.28 llvm/lib/Target/PowerPC/PPC32CodeEmitter.cpp:1.29
--- llvm/lib/Target/PowerPC/PPC32CodeEmitter.cpp:1.28	Sun Apr 17 19:46:10 2005
+++ llvm/lib/Target/PowerPC/PPC32CodeEmitter.cpp	Tue Apr 19 00:41:52 2005
@@ -186,6 +186,13 @@
                   // or things that get fixed up later by the JIT.
   if (MO.isRegister()) {
     rv = enumRegToMachineReg(MO.getReg());
+
+    // Special encoding for MTCRF and MFCRF, which uses a bit mask for the
+    // register, not the register number directly.
+    if ((MI.getOpcode() == PPC::MTCRF || MI.getOpcode() == PPC::MFCRF) &&
+        (MO.getReg() >= PPC::CR0 && MO.getReg() <= PPC::CR7)) {
+      rv = 0x80 >> rv;
+    }
   } else if (MO.isImmediate()) {
     rv = MO.getImmedValue();
   } else if (MO.isGlobalAddress() || MO.isExternalSymbol()) {