I misled Alkis: LLVM should have isnan, not isunordered.

  isunordered(X, Y) === isnan(X) | isnan(Y)

Remove isunordered, add isnan.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14132 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 6 insertions, 4 deletions

diff --git a/lib/CodeGen/IntrinsicLowering.cpp b/lib/CodeGen/IntrinsicLowering.cpp
index 38ba73d01f..bc6f02e4d6 100644
--- a/lib/CodeGen/IntrinsicLowering.cpp
+++ b/lib/CodeGen/IntrinsicLowering.cpp
@@ -191,10 +191,12 @@ void DefaultIntrinsicLowering::LowerIntrinsicCall(CallInst *CI) {
                     (*(CI->op_begin()+1))->getType(), MemsetFCache);
     break;
   }
-  case Intrinsic::isunordered: {
-    static Function *IsunorderedFCache = 0;
-    ReplaceCallWith("isunordered", CI, CI->op_begin()+1, CI->op_end(),
-                    (*(CI->op_begin()+1))->getType(), IsunorderedFCache);
+  case Intrinsic::isnan: {
+    // FIXME: This should force the argument to be a double.  There may be
+    // multiple isnans for different FP arguments.
+    static Function *isnanFCache = 0;
+    ReplaceCallWith("isnan", CI, CI->op_begin()+1, CI->op_end(),
+                    (*(CI->op_begin()+1))->getType(), isnanFCache);
     break;
   }
   }