Add a post encoder method to the VFP instructions to convert them to the Thumb2
encoding if we're in that mode.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120608 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/ARM/ARMMCCodeEmitter.cpp b/lib/Target/ARM/ARMMCCodeEmitter.cpp
index 7a7864f..a20934d 100644
--- a/lib/Target/ARM/ARMMCCodeEmitter.cpp
+++ b/lib/Target/ARM/ARMMCCodeEmitter.cpp
@@ -249,9 +249,12 @@
unsigned NEONThumb2DataIPostEncoder(const MCInst &MI,
unsigned EncodedValue) const;
unsigned NEONThumb2LoadStorePostEncoder(const MCInst &MI,
- unsigned EncodedValue) const;
+ unsigned EncodedValue) const;
unsigned NEONThumb2DupPostEncoder(const MCInst &MI,
- unsigned EncodedValue) const;
+ unsigned EncodedValue) const;
+
+ unsigned VFPThumb2PostEncoder(const MCInst &MI,
+ unsigned EncodedValue) const;
void EmitByte(unsigned char C, raw_ostream &OS) const {
OS << (char)C;
@@ -324,7 +327,16 @@
return EncodedValue;
}
-
+/// VFPThumb2PostEncoder - Post-process encoded VFP instructions and rewrite
+/// them to their Thumb2 form if we are currently in Thumb2 mode.
+unsigned ARMMCCodeEmitter::
+VFPThumb2PostEncoder(const MCInst &MI, unsigned EncodedValue) const {
+ if (TM.getSubtarget<ARMSubtarget>().isThumb2()) {
+ EncodedValue &= 0x0FFFFFFF;
+ EncodedValue |= 0xE0000000;
+ }
+ return EncodedValue;
+}
/// getMachineOpValue - Return binary encoding of operand. If the machine
/// operand requires relocation, record the relocation and return zero.