Imported Upstream version 6.0.0.172

Former-commit-id: f3cc9b82f3e5bd8f0fd3ebc098f789556b44e9cd

external/llvm/test/CodeGen/X86/compare-global.ll

@@ -0,0 +1,22 @@
+; RUN: llc -o - %s | FileCheck %s
+
+target datalayout = "e-m:x-p:32:32-i64:64-f80:32-n8:16:32-a:0:32-S32"
+target triple = "i686-pc-windows-msvc18.0.0"
+
+@foo = external global i8
+
+define void @f(i8* %c) {
+entry:
+  ; CHECK: cmpl $_foo, 4(%esp)
+  %cmp = icmp eq i8* %c, @foo
+  br i1 %cmp, label %if.then, label %if.end
+
+if.then:
+  tail call void @g()
+  br label %if.end
+
+if.end:
+  ret void
+}
+
+declare void @g()