Add a reduced testcase from the recent bootstrap crash.

llvm-svn: 197426

llvm/test/CodeGen/PowerPC/crash.ll

@@ -0,0 +1,17 @@
+; RUN: llc < %s -mtriple=powerpc64-unknown-linux-gnu -mcpu=pwr7
+
+define void @test1(i1 %x, i8 %x2, i8* %x3, i64 %x4) {
+entry:
+  %tmp3 = and i64 %x4, 16
+  %bf.shl = trunc i64 %tmp3 to i8
+  %bf.clear = and i8 %x2, -17
+  %bf.set = or i8 %bf.shl, %bf.clear
+  br i1 %x, label %if.then, label %if.end
+
+if.then:
+  ret void
+
+if.end:
+  store i8 %bf.set, i8* %x3, align 4
+  ret void
+}