From: Nate Begeman <natebegeman@mac.com>
Date: Thu, 29 Jul 2010 22:48:34 +0000 (+0000)
Subject: Wire up sema checking for __builtin_arm_usat and __builtin_arm_ssat immediates.
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=bb37f50c2d0d72e1fa5b349d5f6a11fdc5acb86e;p=clang

Wire up sema checking for __builtin_arm_usat and __builtin_arm_ssat immediates.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@109814 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/include/clang/Basic/BuiltinsARM.def b/include/clang/Basic/BuiltinsARM.def
index b2ddd9fb69..9da073d6fa 100644
--- a/include/clang/Basic/BuiltinsARM.def
+++ b/include/clang/Basic/BuiltinsARM.def
@@ -17,8 +17,12 @@
 // In libgcc
 BUILTIN(__clear_cache, "v.", "")
 BUILTIN(__builtin_thread_pointer, "v*", "")
+
+// Saturating arithmetic
 BUILTIN(__builtin_arm_qadd, "iii", "nc")
 BUILTIN(__builtin_arm_qsub, "iii", "nc")
+BUILTIN(__builtin_arm_ssat, "iiUi", "nc")
+BUILTIN(__builtin_arm_usat, "UiUiUi", "nc")
 
 // NEON
 #define GET_NEON_BUILTINS
diff --git a/lib/CodeGen/CGBuiltin.cpp b/lib/CodeGen/CGBuiltin.cpp
index f3346e7bd7..7a14033b0e 100644
--- a/lib/CodeGen/CGBuiltin.cpp
+++ b/lib/CodeGen/CGBuiltin.cpp
@@ -1062,7 +1062,7 @@ Value *CodeGenFunction::EmitARMBuiltinExpr(unsigned BuiltinID,
   }
 
   // Determine the type of this overloaded NEON intrinsic.
-  assert(BuiltinID > ARM::BI__builtin_thread_pointer);
+  assert(BuiltinID > ARM::BI__builtin_arm_usat);
 
   llvm::SmallVector<Value*, 4> Ops;
   for (unsigned i = 0, e = E->getNumArgs() - 1; i != e; i++)
diff --git a/lib/Sema/SemaChecking.cpp b/lib/Sema/SemaChecking.cpp
index 03ca084dd8..d032b3fe01 100644
--- a/lib/Sema/SemaChecking.cpp
+++ b/lib/Sema/SemaChecking.cpp
@@ -298,6 +298,8 @@ bool Sema::CheckARMBuiltinFunctionCall(unsigned BuiltinID, CallExpr *TheCall) {
   unsigned i = 0, l = 0, u = 0;
   switch (BuiltinID) {
   default: return false;
+  case ARM::BI__builtin_arm_ssat: i = 1; l = 1; u = 31; break;
+  case ARM::BI__builtin_arm_usat: i = 1; u = 31; break;
 #define GET_NEON_IMMEDIATE_CHECK
 #include "clang/Basic/arm_neon.inc"
 #undef GET_NEON_IMMEDIATE_CHECK