1 files changed, 55 insertions, 0 deletions
diff --git a/llvm/test/Transforms/ADCE/2016-09-06.ll b/llvm/test/Transforms/ADCE/2016-09-06.ll
new file mode 100644
index 00000000000..6a2d396ecda
--- /dev/null
+++ b/llvm/test/Transforms/ADCE/2016-09-06.ll
@@ -0,0 +1,55 @@
+; RUN: opt < %s -sroa -adce -adce-remove-loops -S | FileCheck %s
+; ModuleID = 'test1.bc'
+source_filename = "test1.c"
+target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
+target triple = "x86_64-unknown-linux-gnu"
+
+; Function Attrs: nounwind uwtable
+define i32 @foo(i32, i32, i32) #0 {
+  %4 = alloca i32, align 4
+  %5 = alloca i32, align 4
+  %6 = alloca i32, align 4
+  %7 = alloca i32, align 4
+  %8 = alloca i32, align 4
+  store i32 %0, i32* %4, align 4
+  store i32 %1, i32* %5, align 4
+  store i32 %2, i32* %6, align 4
+  store i32 0, i32* %7, align 4
+  %9 = load i32, i32* %5, align 4
+  %I10 = icmp ne i32 %9, 0
+  br i1 %I10, label %B11, label %B21
+
+B11: 
+  store i32 0, i32* %8, align 4
+  br label %B12
+
+B12:
+  %I13 = load i32, i32* %8, align 4
+  %I14 = load i32, i32* %6, align 4
+  %I15 = icmp slt i32 %I13, %I14
+; CHECK: br label %B20
+  br i1 %I15, label %B16, label %B20
+
+B16: 
+  br label %B17
+
+B17: 
+  %I18 = load i32, i32* %8, align 4
+  %I19 = add nsw i32 %I18, 1
+  store i32 %I19, i32* %8, align 4
+  br label %B12
+
+B20:
+  store i32 1, i32* %7, align 4
+  br label %B21
+
+B21: 
+  %I22 = load i32, i32* %7, align 4
+  ret i32 %I22
+}
+
+attributes #0 = { nounwind uwtable "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" }
+
+!llvm.ident = !{!0}
+
+!0 = !{!"clang version 4.0.0"}