From 6fb3bd6a658940287789198d3207b0da04c0a4e6 Mon Sep 17 00:00:00 2001
From: Nate Begeman <natebegeman@mac.com>
Date: Sat, 14 Jan 2006 01:25:24 +0000
Subject: Add bswap intrinsics as documented in the Language Reference

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25309 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/VMCore/Function.cpp |  5 +++++
 lib/VMCore/Verifier.cpp | 30 ++++++++++++++++++++++++++++++
 2 files changed, 35 insertions(+)

(limited to 'lib/VMCore')

diff --git a/lib/VMCore/Function.cpp b/lib/VMCore/Function.cpp
index 0cbe14c..3abfef9 100644
--- a/lib/VMCore/Function.cpp
+++ b/lib/VMCore/Function.cpp
@@ -207,6 +207,11 @@ unsigned Function::getIntrinsicID() const {
   assert(getName().size() != 5 && "'llvm.' is an invalid intrinsic name!");
 
   switch (getName()[5]) {
+  case 'b':
+    if (getName() == "llvm.bswap.i16") return Intrinsic::bswap_i16;
+    if (getName() == "llvm.bswap.i32") return Intrinsic::bswap_i32;
+    if (getName() == "llvm.bswap.i64") return Intrinsic::bswap_i64;
+    break;
   case 'c':
     if (getName() == "llvm.ctpop") return Intrinsic::ctpop;
     if (getName() == "llvm.cttz") return Intrinsic::cttz;
diff --git a/lib/VMCore/Verifier.cpp b/lib/VMCore/Verifier.cpp
index 9dd7184..f67a497 100644
--- a/lib/VMCore/Verifier.cpp
+++ b/lib/VMCore/Verifier.cpp
@@ -749,6 +749,36 @@ void Verifier::visitIntrinsicFunctionCall(Intrinsic::ID ID, CallInst &CI) {
     NumArgs = 0;
     break;
 
+  case Intrinsic::bswap_i16:
+    Assert1(FT->getNumParams() == 1,
+            "Illegal # arguments for intrinsic function!", IF);
+    Assert1(FT->getReturnType() == FT->getParamType(0),
+            "Return type does not match source type", IF);
+    Assert1(FT->getReturnType() == Type::UShortTy,
+            "Return type is not ushort!", IF);
+    NumArgs = 1;
+    break;    
+
+  case Intrinsic::bswap_i32:
+    Assert1(FT->getNumParams() == 1,
+            "Illegal # arguments for intrinsic function!", IF);
+    Assert1(FT->getReturnType() == FT->getParamType(0),
+            "Return type does not match source type", IF);
+    Assert1(FT->getReturnType() == Type::UIntTy,
+            "Return type is not uint!", IF);
+    NumArgs = 1;
+    break;    
+
+  case Intrinsic::bswap_i64:
+    Assert1(FT->getNumParams() == 1,
+            "Illegal # arguments for intrinsic function!", IF);
+    Assert1(FT->getReturnType() == FT->getParamType(0),
+            "Return type does not match source type", IF);
+    Assert1(FT->getReturnType() == Type::ULongTy,
+            "Return type is not ulong!", IF);
+    NumArgs = 1;
+    break;    
+    
   case Intrinsic::ctpop:
   case Intrinsic::ctlz:
   case Intrinsic::cttz:
-- 
cgit v1.1