fix an IPSCCP bug I introduced when I changed IPSCCP to start working on

functions that don't have local linkage.  Basically, we need to be more
careful about propagating argument information to functions whose results
we aren't tracking.  This fixes a miscompilation of 
LLVMCConfigurationEmitter.cpp when built with an llvm-gcc that has ipsccp
enabled.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85923 91177308-0d34-0410-b5e6-96231b3b80d8

test/Transforms/SCCP/ipsccp-basic.ll

@@ -174,4 +174,24 @@ define i32 @test7b() {
 ; CHECK-NEXT: ret i32 36
 }
 
+;;======================== test8
+
+
+define internal {} @test8a(i32 %A, i32* %P) {
+  store i32 %A, i32* %P
+  ret {} {}
+; CHECK: @test8a
+; CHECK-NEXT: store i32 5, 
+; CHECK-NEXT: ret 
+}
+
+define void @test8b(i32* %P) {
+    %X = call {} @test8a(i32 5, i32* %P)
+    ret void
+; CHECK: define void @test8b
+; CHECK-NEXT: call {} @test8a
+; CHECK-NEXT: ret void
+}
+
+