implement support for the linux/ppc function call ABI. Patch by

Nicolas Geoffray!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34574 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 36 insertions, 8 deletions

diff --git a/lib/Target/PowerPC/PPCInstr64Bit.td b/lib/Target/PowerPC/PPCInstr64Bit.td
index 56d02cc146..89e883a696 100644
--- a/lib/Target/PowerPC/PPCInstr64Bit.td
+++ b/lib/Target/PowerPC/PPCInstr64Bit.td
@@ -69,6 +69,7 @@ let Defs = [LR8] in
   def MovePCtoLR8 : Pseudo<(ops piclabel:$label), "bl $label", []>,
                     PPC970_Unit_BRU;
 
+// Macho ABI Calls.
 let isCall = 1, noResults = 1, PPC970_Unit = 7, 
   // All calls clobber the PPC64 non-callee saved registers.
   Defs = [X0,X2,X3,X4,X5,X6,X7,X8,X9,X10,X11,X12,
@@ -77,18 +78,45 @@ let isCall = 1, noResults = 1, PPC970_Unit = 7,
           LR8,CTR8,
           CR0,CR1,CR5,CR6,CR7] in {
   // Convenient aliases for call instructions
-  def BL8  : IForm<18, 0, 1, (ops calltarget:$func, variable_ops), 
-                            "bl $func", BrB, []>;  // See Pat patterns below.
+  def BL8_Macho  : IForm<18, 0, 1,
+                         (ops calltarget:$func, variable_ops), 
+                         "bl $func", BrB, []>;  // See Pat patterns below.
                             
-  def BLA8 : IForm<18, 1, 1, (ops aaddr:$func, variable_ops),
-                   "bla $func", BrB, [(PPCcall (i64 imm:$func))]>;
+  def BLA8_Macho : IForm<18, 1, 1,
+                         (ops aaddr:$func, variable_ops),
+                         "bla $func", BrB, [(PPCcall_Macho (i64 imm:$func))]>;
 }
 
+// ELF ABI Calls.
+let isCall = 1, noResults = 1, PPC970_Unit = 7, 
+  // All calls clobber the PPC64 non-callee saved registers.
+  Defs = [X0,X2,X3,X4,X5,X6,X7,X8,X9,X10,X11,X12,
+          F0,F1,F2,F3,F4,F5,F6,F7,F8,F9,F10,
+          V0,V1,V2,V3,V4,V5,V6,V7,V8,V9,V10,V11,V12,V13,V14,V15,V16,V17,V18,V19,
+          LR8,CTR8,
+          CR0,CR1,CR5,CR6,CR7] in {
+  // Convenient aliases for call instructions
+  def BL8_ELF  : IForm<18, 0, 1,
+                       (ops calltarget:$func, variable_ops), 
+                       "bl $func", BrB, []>;  // See Pat patterns below.
+                            
+  def BLA8_ELF : IForm<18, 1, 1,
+                       (ops aaddr:$func, variable_ops),
+                       "bla $func", BrB, [(PPCcall_ELF (i64 imm:$func))]>;
+}
+
+
 // Calls
-def : Pat<(PPCcall (i64 tglobaladdr:$dst)),
-          (BL8 tglobaladdr:$dst)>;
-def : Pat<(PPCcall (i64 texternalsym:$dst)),
-          (BL8 texternalsym:$dst)>;
+def : Pat<(PPCcall_Macho (i64 tglobaladdr:$dst)),
+          (BL8_Macho tglobaladdr:$dst)>;
+def : Pat<(PPCcall_Macho (i64 texternalsym:$dst)),
+          (BL8_Macho texternalsym:$dst)>;
+
+def : Pat<(PPCcall_ELF (i64 tglobaladdr:$dst)),
+          (BL8_ELF tglobaladdr:$dst)>;
+def : Pat<(PPCcall_ELF (i64 texternalsym:$dst)),
+          (BL8_ELF texternalsym:$dst)>;
+
 
 //===----------------------------------------------------------------------===//
 // 64-bit SPR manipulation instrs.