[PowerPC] Support powerpc64le as a syntax-checking target.

[oota-llvm.git] / lib / Target / PowerPC / MCTargetDesc / PPCAsmBackend.cpp

diff --git a/lib/Target/PowerPC/MCTargetDesc/PPCAsmBackend.cpp b/lib/Target/PowerPC/MCTargetDesc/PPCAsmBackend.cpp
index 9ec5f0e0b54c91ca13f37b698ed1a32867c5f215..b2a8701b68be62ea4d4ad2b921ddf4ddf13a6e0e 100644 (file)
--- a/lib/Target/PowerPC/MCTargetDesc/PPCAsmBackend.cpp
+++ b/lib/Target/PowerPC/MCTargetDesc/PPCAsmBackend.cpp
@@ -30,20 +30,17 @@ static uint64_t adjustFixupValue(unsigned Kind, uint64_t Value) {
   case FK_Data_2:
   case FK_Data_4:
   case FK_Data_8:
-  case PPC::fixup_ppc_tlsreg:
   case PPC::fixup_ppc_nofixup:
     return Value;
   case PPC::fixup_ppc_brcond14:
+  case PPC::fixup_ppc_brcond14abs:
     return Value & 0xfffc;
   case PPC::fixup_ppc_br24:
+  case PPC::fixup_ppc_br24abs:
     return Value & 0x3fffffc;
-#if 0
-  case PPC::fixup_ppc_hi16:
-#endif
-  case PPC::fixup_ppc_ha16:
-  case PPC::fixup_ppc_lo16:
+  case PPC::fixup_ppc_half16:
     return Value & 0xffff;
-  case PPC::fixup_ppc_lo16_ds:
+  case PPC::fixup_ppc_half16ds:
     return Value & 0xfffc;
   }
 }
@@ -55,17 +52,17 @@ static unsigned getFixupKindNumBytes(unsigned Kind) {
   case FK_Data_1:
     return 1;
   case FK_Data_2:
-  case PPC::fixup_ppc_ha16:
-  case PPC::fixup_ppc_lo16:
-  case PPC::fixup_ppc_lo16_ds:
+  case PPC::fixup_ppc_half16:
+  case PPC::fixup_ppc_half16ds:
     return 2;
   case FK_Data_4:
   case PPC::fixup_ppc_brcond14:
+  case PPC::fixup_ppc_brcond14abs:
   case PPC::fixup_ppc_br24:
+  case PPC::fixup_ppc_br24abs:
     return 4;
   case FK_Data_8:
     return 8;
-  case PPC::fixup_ppc_tlsreg:
   case PPC::fixup_ppc_nofixup:
     return 0;
   }
@@ -98,10 +95,10 @@ public:
       // name                    offset  bits  flags
       { "fixup_ppc_br24",        6,      24,   MCFixupKindInfo::FKF_IsPCRel },
       { "fixup_ppc_brcond14",    16,     14,   MCFixupKindInfo::FKF_IsPCRel },
-      { "fixup_ppc_lo16",         0,     16,   0 },
-      { "fixup_ppc_ha16",         0,     16,   0 },
-      { "fixup_ppc_lo16_ds",      0,     14,   0 },
-      { "fixup_ppc_tlsreg",       0,      0,   0 },
+      { "fixup_ppc_br24abs",     6,      24,   0 },
+      { "fixup_ppc_brcond14abs", 16,     14,   0 },
+      { "fixup_ppc_half16",       0,     16,   0 },
+      { "fixup_ppc_half16ds",     0,     14,   0 },
       { "fixup_ppc_nofixup",      0,      0,   0 }
     };
 
@@ -148,16 +145,20 @@ public:
   }
 
   bool writeNopData(uint64_t Count, MCObjectWriter *OW) const {
-    // FIXME: Zero fill for now. That's not right, but at least will get the
-    // section size right.
-    for (uint64_t i = 0; i != Count; ++i)
-      OW->Write8(0);
+    // Can't emit NOP with size not multiple of 32-bits
+    if (Count % 4 != 0)
+      return false;
+
+    uint64_t NumNops = Count / 4;
+    for (uint64_t i = 0; i != NumNops; ++i)
+      OW->Write32(0x60000000);
+
     return true;
   }
 
   unsigned getPointerSize() const {
     StringRef Name = TheTarget.getName();
-    if (Name == "ppc64") return 8;
+    if (Name == "ppc64" || Name == "ppc64le") return 8;
     assert(Name == "ppc32" && "Unknown target name!");
     return 4;
   }