[EABI] Add LLVM support for -meabi flag

[oota-llvm.git] / lib / Target / ARM / ARMISelLowering.cpp

diff --git a/lib/Target/ARM/ARMISelLowering.cpp b/lib/Target/ARM/ARMISelLowering.cpp
index 8f9ca96e5d95d922d24a89f8aea91965f3f4924f..f6a382b44fcbdf2e116bf2921dbd9df62e3e7393 100644 (file)
--- a/lib/Target/ARM/ARMISelLowering.cpp
+++ b/lib/Target/ARM/ARMISelLowering.cpp
@@ -256,8 +256,10 @@ ARMTargetLowering::ARMTargetLowering(const TargetMachine &TM,
   setLibcallName(RTLIB::SRL_I128, nullptr);
   setLibcallName(RTLIB::SRA_I128, nullptr);
 
-  if (Subtarget->isAAPCS_ABI() && !Subtarget->isTargetMachO() &&
-      !Subtarget->isTargetWindows()) {
+  // RTLIB
+  if (Subtarget->isAAPCS_ABI() &&
+      (Subtarget->isTargetAEABI() || Subtarget->isTargetGNUAEABI() ||
+       Subtarget->isTargetAndroid())) {
     static const struct {
       const RTLIB::Libcall Op;
       const char * const Name;
@@ -345,12 +347,6 @@ ARMTargetLowering::ARMTargetLowering(const TargetMachine &TM,
       { RTLIB::UDIV_I16, "__aeabi_uidiv",    CallingConv::ARM_AAPCS, ISD::SETCC_INVALID },
       { RTLIB::UDIV_I32, "__aeabi_uidiv",    CallingConv::ARM_AAPCS, ISD::SETCC_INVALID },
       { RTLIB::UDIV_I64, "__aeabi_uldivmod", CallingConv::ARM_AAPCS, ISD::SETCC_INVALID },
-
-      // Memory operations
-      // RTABI chapter 4.3.4
-      { RTLIB::MEMCPY,  "__aeabi_memcpy",  CallingConv::ARM_AAPCS, ISD::SETCC_INVALID },
-      { RTLIB::MEMMOVE, "__aeabi_memmove", CallingConv::ARM_AAPCS, ISD::SETCC_INVALID },
-      { RTLIB::MEMSET,  "__aeabi_memset",  CallingConv::ARM_AAPCS, ISD::SETCC_INVALID },
     };
 
     for (const auto &LC : LibraryCalls) {
@@ -359,6 +355,30 @@ ARMTargetLowering::ARMTargetLowering(const TargetMachine &TM,
       if (LC.Cond != ISD::SETCC_INVALID)
         setCmpLibcallCC(LC.Op, LC.Cond);
     }
+
+    // EABI dependent RTLIB
+    if (TM.Options.EABIVersion == EABI::EABI4 ||
+        TM.Options.EABIVersion == EABI::EABI5) {
+      static const struct {
+        const RTLIB::Libcall Op;
+        const char *const Name;
+        const CallingConv::ID CC;
+        const ISD::CondCode Cond;
+      } MemOpsLibraryCalls[] = {
+        // Memory operations
+        // RTABI chapter 4.3.4
+        { RTLIB::MEMCPY,  "__aeabi_memcpy",  CallingConv::ARM_AAPCS, ISD::SETCC_INVALID },
+        { RTLIB::MEMMOVE, "__aeabi_memmove", CallingConv::ARM_AAPCS, ISD::SETCC_INVALID },
+        { RTLIB::MEMSET,  "__aeabi_memset",  CallingConv::ARM_AAPCS, ISD::SETCC_INVALID },
+      };
+
+      for (const auto &LC : MemOpsLibraryCalls) {
+        setLibcallName(LC.Op, LC.Name);
+        setLibcallCallingConv(LC.Op, LC.CC);
+        if (LC.Cond != ISD::SETCC_INVALID)
+          setCmpLibcallCC(LC.Op, LC.Cond);
+      }
+    }
   }
 
   if (Subtarget->isTargetWindows()) {