[X86][ISel] Fix a regression I introduced in r224884

The else case ResultReg was not checked for validity.
To my surprise, this case was not hit in any of the
existing test cases. This includes a new test cases
that tests this path.

Also drop the `target triple` declaration from the
original test as suggested by H.J. Lu, because
apparently with it the test won't be run on Linux

llvm-svn: 224901

1 files changed, 3 insertions, 3 deletions

diff --git a/llvm/lib/Target/X86/X86FastISel.cpp b/llvm/lib/Target/X86/X86FastISel.cpp
index 4af856c5622..d4459eec8ba 100644
--- a/llvm/lib/Target/X86/X86FastISel.cpp
+++ b/llvm/lib/Target/X86/X86FastISel.cpp
@@ -2709,15 +2709,15 @@ bool X86FastISel::fastLowerCall(CallLoweringInfo &CLI) {
 
       ResultReg =
         fastEmit_ri(VT, VT, ISD::AND, ResultReg, hasTrivialKill(PrevVal), 1);
-
-      if (!ResultReg)
-        return false;
     } else {
       if (!isTypeLegal(Val->getType(), VT))
         return false;
       ResultReg = getRegForValue(Val);
     }
 
+    if (!ResultReg)
+      return false;
+
     ArgRegs.push_back(ResultReg);
     OutVTs.push_back(VT);
   }