another more interesting test.

llvm-svn: 86445

1 files changed, 31 insertions, 0 deletions

diff --git a/llvm/test/Transforms/InstCombine/phi.ll b/llvm/test/Transforms/InstCombine/phi.ll
index 23e41cab025..f4cb6223e74 100644
--- a/llvm/test/Transforms/InstCombine/phi.ll
+++ b/llvm/test/Transforms/InstCombine/phi.ll
@@ -253,3 +253,34 @@ end:
 ; CHECK: ret i64
 }
 
+declare void @test13f(double, i32)
+
+define void @test13(i1 %cond, i32 %V1, double %Vald) {
+entry:
+  %tmp42 = zext i32 %V1 to i128
+  br i1 %cond, label %end, label %two
+
+two:
+  %Val = bitcast double %Vald to i64
+  %tmp36 = zext i64 %Val to i128            ; <i128> [#uses=1]
+  %tmp37 = shl i128 %tmp36, 64                    ; <i128> [#uses=1]
+  %ins39 = or i128 %tmp42, %tmp37                 ; <i128> [#uses=1]
+  br label %end
+
+end:
+  %tmp869.0 = phi i128 [ %tmp42, %entry ], [ %ins39, %two ]
+  %tmp32 = trunc i128 %tmp869.0 to i32
+  %tmp29 = lshr i128 %tmp869.0, 64                ; <i128> [#uses=1]
+  %tmp30 = trunc i128 %tmp29 to i64               ; <i64> [#uses=1]
+  %tmp31 = bitcast i64 %tmp30 to double
+  
+  call void @test13f(double %tmp31, i32 %tmp32)
+  ret void
+; CHECK: @test13
+; CHECK-NOT: zext
+; CHECK: end:
+; CHECK-NEXT: phi double [ 0.000000e+00, %entry ], [ %Vald, %two ]
+; CHECK-NEXT: call void @test13f(double {{[^,]*}}, i32 %V1)
+; CHECK: ret void
+}
+