Address issues found by Duncan during post-commit review of r177856.

[oota-llvm.git] / test / Transforms / InstCombine / select-crash.ll

diff --git a/test/Transforms/InstCombine/select-crash.ll b/test/Transforms/InstCombine/select-crash.ll
index 18af1520c0e1538f6919267e1bc623bfa33ea0e6..946ea2b8b70c58affb81d1c22716edbe20a60990 100644 (file)
--- a/test/Transforms/InstCombine/select-crash.ll
+++ b/test/Transforms/InstCombine/select-crash.ll
@@ -30,3 +30,20 @@ define <4 x float> @foo(i1 %b, <4 x float> %x, <4 x float> %y, <4 x float> %z) {
   %sel = select i1 %b, <4 x float> %a, <4 x float> %sub 
   ret <4 x float> %sel
 }
+
+; CHECK: @test3
+define i32 @test3(i1 %bool, i32 %a) {
+entry:
+  %cond = or i1 %bool, true
+  br i1 %cond, label %return, label %xpto
+
+; technically reachable, but this malformed IR may appear as a result of constant propagation
+xpto:
+  %select = select i1 %bool, i32 %a, i32 %select
+  %select2 = select i1 %bool, i32 %select2, i32 %a
+  %sum = add i32 %select, %select2
+  ret i32 %sum
+
+return:
+  ret i32 7
+}