Add Clang support for remaining integer divide and permute instructions from ISA 2.06
This patch corresponds to review:
http://reviews.llvm.org/D8398
It adds some builtin functions to access the extended divide and bit permute instructions.
llvm-svn: 234547
diff --git a/clang/lib/Sema/SemaChecking.cpp b/clang/lib/Sema/SemaChecking.cpp
index d4390e5..05eaaec 100644
--- a/clang/lib/Sema/SemaChecking.cpp
+++ b/clang/lib/Sema/SemaChecking.cpp
@@ -907,6 +907,28 @@
bool Sema::CheckPPCBuiltinFunctionCall(unsigned BuiltinID, CallExpr *TheCall) {
unsigned i = 0, l = 0, u = 0;
+ bool Is64BitBltin = BuiltinID == PPC::BI__builtin_divde ||
+ BuiltinID == PPC::BI__builtin_divdeu ||
+ BuiltinID == PPC::BI__builtin_bpermd;
+ bool IsTarget64Bit = Context.getTargetInfo()
+ .getTypeWidth(Context
+ .getTargetInfo()
+ .getIntPtrType()) == 64;
+ bool IsBltinExtDiv = BuiltinID == PPC::BI__builtin_divwe ||
+ BuiltinID == PPC::BI__builtin_divweu ||
+ BuiltinID == PPC::BI__builtin_divde ||
+ BuiltinID == PPC::BI__builtin_divdeu;
+
+ if (Is64BitBltin && !IsTarget64Bit)
+ return Diag(TheCall->getLocStart(), diag::err_64_bit_builtin_32_bit_tgt)
+ << TheCall->getSourceRange();
+
+ if ((IsBltinExtDiv && !Context.getTargetInfo().hasFeature("extdiv")) ||
+ (BuiltinID == PPC::BI__builtin_bpermd &&
+ !Context.getTargetInfo().hasFeature("bpermd")))
+ return Diag(TheCall->getLocStart(), diag::err_ppc_builtin_only_on_pwr7)
+ << TheCall->getSourceRange();
+
switch (BuiltinID) {
default: return false;
case PPC::BI__builtin_altivec_crypto_vshasigmaw: