Imported Upstream version 5.18.0.161

Former-commit-id: 4db48158d3a35497b8f118ab21b5f08ac3d86d98

external/llvm/test/CodeGen/Thumb2/thumb2-cbnz.ll

@@ -0,0 +1,35 @@
+; RUN: llc < %s -mtriple=thumbv7-apple-darwin -mcpu=cortex-a8 -arm-atomic-cfg-tidy=0 | FileCheck %s
+; rdar://7354379
+
+declare double @foo(double) nounwind readnone
+
+define void @t(i32 %c, double %b) {
+entry:
+; CHECK:      cmp	r0, #0
+  %cmp1 = icmp ne i32 %c, 0
+  br i1 %cmp1, label %bb3, label %bb1
+
+bb1:                                              ; preds = %entry
+  unreachable
+
+bb3:                                              ; preds = %entry
+  %cmp2 = icmp ne i32 %c, 0
+  br i1 %cmp2, label %bb7, label %bb5
+
+bb5:                                              ; preds = %bb3
+  unreachable
+
+bb7:                                              ; preds = %bb3
+  %cmp3 = icmp ne i32 %c, 0
+  br i1 %cmp3, label %bb11, label %bb9
+
+bb9:                                              ; preds = %bb7
+; CHECK:      cbnz
+  %0 = tail call  double @foo(double %b) nounwind readnone ; <double> [#uses=0]
+  br label %bb11
+
+bb11:                                             ; preds = %bb9, %bb7
+  %1 = getelementptr i32, i32* undef, i32 0
+  store i32 0, i32* %1
+  ret void
+}