+#if !defined(__powerpc64__) && !defined(__ppc64__)
+void PPC64CompilationCallback() {
+ llvm_unreachable("This is not a 64bit PowerPC, you can't execute this!");
+}
+#else
+# ifdef __ELF__
+asm(
+ ".text\n"
+ ".align 2\n"
+ ".globl PPC64CompilationCallback\n"
+#if _CALL_ELF == 2
+ ".type PPC64CompilationCallback,@function\n"
+"PPC64CompilationCallback:\n"
+#else
+ ".section \".opd\",\"aw\",@progbits\n"
+ ".align 3\n"
+"PPC64CompilationCallback:\n"
+ ".quad .L.PPC64CompilationCallback,.TOC.@tocbase,0\n"
+ ".size PPC64CompilationCallback,24\n"
+ ".previous\n"
+ ".align 4\n"
+ ".type PPC64CompilationCallback,@function\n"
+".L.PPC64CompilationCallback:\n"
+#endif
+# else
+asm(
+ ".text\n"
+ ".align 2\n"
+ ".globl _PPC64CompilationCallback\n"
+"_PPC64CompilationCallback:\n"
+# endif
+ // Make space for 8 ints r[3-10] and 13 doubles f[1-13] and the
+ // FIXME: need to save v[0-19] for altivec?
+ // Set up a proper stack frame
+ // Layout
+ // PowerPC64 ABI linkage - 48 bytes
+ // parameters - 64 bytes
+ // 13 double registers - 104 bytes
+ // 8 int registers - 64 bytes
+ "mflr 0\n"
+ "std 0, 16(1)\n"
+ "stdu 1, -280(1)\n"
+ // Save all int arg registers
+ "std 10, 272(1)\n" "std 9, 264(1)\n"
+ "std 8, 256(1)\n" "std 7, 248(1)\n"
+ "std 6, 240(1)\n" "std 5, 232(1)\n"
+ "std 4, 224(1)\n" "std 3, 216(1)\n"
+ // Save all call-clobbered FP regs.
+ "stfd 13, 208(1)\n" "stfd 12, 200(1)\n"
+ "stfd 11, 192(1)\n" "stfd 10, 184(1)\n"
+ "stfd 9, 176(1)\n" "stfd 8, 168(1)\n"
+ "stfd 7, 160(1)\n" "stfd 6, 152(1)\n"
+ "stfd 5, 144(1)\n" "stfd 4, 136(1)\n"
+ "stfd 3, 128(1)\n" "stfd 2, 120(1)\n"
+ "stfd 1, 112(1)\n"
+ // Arguments to Compilation Callback:
+ // r3 - our lr (address of the call instruction in stub plus 4)
+ // r4 - stub's lr (address of instruction that called the stub plus 4)
+ // r5 - is64Bit - always 1.
+ "mr 3, 0\n" // return address (still in r0)
+ "ld 5, 280(1)\n" // stub's frame
+ "ld 4, 16(5)\n" // stub's lr
+ "li 5, 1\n" // 1 == 64 bit
+# ifdef __ELF__
+ "bl LLVMPPCCompilationCallback\n"
+ "nop\n"
+# else
+ "bl _LLVMPPCCompilationCallback\n"
+# endif
+ "mtctr 3\n"
+ // Restore all int arg registers
+ "ld 10, 272(1)\n" "ld 9, 264(1)\n"
+ "ld 8, 256(1)\n" "ld 7, 248(1)\n"
+ "ld 6, 240(1)\n" "ld 5, 232(1)\n"
+ "ld 4, 224(1)\n" "ld 3, 216(1)\n"
+ // Restore all FP arg registers
+ "lfd 13, 208(1)\n" "lfd 12, 200(1)\n"
+ "lfd 11, 192(1)\n" "lfd 10, 184(1)\n"
+ "lfd 9, 176(1)\n" "lfd 8, 168(1)\n"
+ "lfd 7, 160(1)\n" "lfd 6, 152(1)\n"
+ "lfd 5, 144(1)\n" "lfd 4, 136(1)\n"
+ "lfd 3, 128(1)\n" "lfd 2, 120(1)\n"
+ "lfd 1, 112(1)\n"
+ // Pop 3 frames off the stack and branch to target
+ "ld 1, 280(1)\n"
+ "ld 0, 16(1)\n"
+ "mtlr 0\n"
+ // XXX: any special TOC handling in the ELF case for JIT?
+ "bctr\n"
+ );
+#endif