Add support for calls through function pointers in the 64-bit PowerPC SVR4 ABI.

[oota-llvm.git] / lib / Target / PowerPC / PPCISelLowering.h

diff --git a/lib/Target/PowerPC/PPCISelLowering.h b/lib/Target/PowerPC/PPCISelLowering.h
index e45b261f156bbfeecb478a243c3087cf6fcb0269..cf8139557d639f7222b4b20ac3710b7b11a3bf6e 100644 (file)
--- a/lib/Target/PowerPC/PPCISelLowering.h
+++ b/lib/Target/PowerPC/PPCISelLowering.h
@@ -61,6 +61,21 @@ namespace llvm {
       
       TOC_ENTRY,
 
+      /// The following three target-specific nodes are used for calls through
+      /// function pointers in the 64-bit SVR4 ABI.
+
+      /// Restore the TOC from the TOC save area of the current stack frame.
+      /// This is basically a hard coded load instruction which additionally
+      /// takes/produces a flag.
+      TOC_RESTORE,
+
+      /// Like a regular LOAD but additionally taking/producing a flag.
+      LOAD,
+
+      /// LOAD into r2 (also taking/producing a flag). Like TOC_RESTORE, this is
+      /// a hard coded load instruction.
+      LOAD_TOC,
+
       /// OPRC, CHAIN = DYNALLOC(CHAIN, NEGSIZE, FRAME_INDEX)
       /// This instruction is lowered in PPCRegisterInfo::eliminateFrameIndex to
       /// compute an allocation on the stack.