1 files changed, 54 insertions, 0 deletions
diff --git a/llvm/test/Transforms/InstSimplify/simplify-nested-bitcast.ll b/llvm/test/Transforms/InstSimplify/simplify-nested-bitcast.ll
new file mode 100644
index 00000000000..b7ee79415a2
--- /dev/null
+++ b/llvm/test/Transforms/InstSimplify/simplify-nested-bitcast.ll
@@ -0,0 +1,54 @@
+; RUN: opt -always-inline -S %s | FileCheck %s
+%0 = type { i64, i64, i8 addrspace(1)*, i8 addrspace(1)* }
+%__aaa_struct = type { { i8**, i32, i32, i8*, %struct.__block_descriptor addrspace(1)* }, %0, [17 x i8], { i8**, i32, i32, i8*, %struct.__block_descriptor addrspace(1)* }, %0, [18 x i8] }
+%struct.__block_descriptor = type { i64, i64 }
+%struct.__block_literal_generic = type { i8*, i32, i32, i8*, %struct.__block_descriptor addrspace(1)* }
+
+@__aaa_struct_ptr = external addrspace(1) global %__aaa_struct
+@__aaa_const_init = constant %__aaa_struct { { i8**, i32, i32, i8*, %struct.__block_descriptor addrspace(1)* } { i8** null, i32 1342177280, i32 0, i8* bitcast (i32 (i8 addrspace(4)*, i32 addrspace(1)*)* @bl0_block_invoke to i8*), %struct.__block_descriptor addrspace(1)* bitcast (%0 addrspace(1)* getelementptr inbounds (%__aaa_struct, %__aaa_struct addrspace(1)* @__aaa_struct_ptr, i32 0, i32 1) to %struct.__block_descriptor addrspace(1)*) }, %0 { i64 0, i64 32, i8 addrspace(1)* getelementptr inbounds (%__aaa_struct, %__aaa_struct addrspace(1)* @__aaa_struct_ptr, i32 0, i32 2, i32 0), i8 addrspace(1)* null }, [17 x i8] c"bl0_block_invoke\00", { i8**, i32, i32, i8*, %struct.__block_descriptor addrspace(1)* } { i8** null, i32 1342177280, i32 0, i8* bitcast (i32 (i8 addrspace(4)*, i32 addrspace(1)*)* @__f1_block_invoke to i8*), %struct.__block_descriptor addrspace(1)* bitcast (%0 addrspace(1)* getelementptr inbounds (%__aaa_struct, %__aaa_struct addrspace(1)* @__aaa_struct_ptr, i32 0, i32 4) to %struct.__block_descriptor addrspace(1)*) }, %0 { i64 0, i64 32, i8 addrspace(1)* getelementptr inbounds (%__aaa_struct, %__aaa_struct addrspace(1)* @__aaa_struct_ptr, i32 0, i32 5, i32 0), i8 addrspace(1)* null }, [18 x i8] c"__f1_block_invoke\00" }
+
+; Function Attrs: alwaysinline norecurse nounwind readonly
+define i32 @bl0_block_invoke(i8 addrspace(4)* nocapture readnone, i32 addrspace(1)* nocapture readonly) #0 {
+entry:
+  %2 = load i32, i32 addrspace(1)* %1, align 4
+  %mul = shl nsw i32 %2, 1
+  ret i32 %mul
+}
+
+; Function Attrs: alwaysinline nounwind
+define i32 @f0(i32 addrspace(1)*, i32 (i32 addrspace(1)*) addrspace(4)*) #1 {
+entry:
+  %block.literal = bitcast i32 (i32 addrspace(1)*) addrspace(4)* %1 to %struct.__block_literal_generic addrspace(4)*
+  %2 = getelementptr inbounds %struct.__block_literal_generic, %struct.__block_literal_generic addrspace(4)* %block.literal, i64 0, i32 3
+  %3 = bitcast i32 (i32 addrspace(1)*) addrspace(4)* %1 to i8 addrspace(4)*
+  %4 = bitcast i8* addrspace(4)* %2 to i32 (i8 addrspace(4)*, i32 addrspace(1)*)* addrspace(4)*
+  %5 = load i32 (i8 addrspace(4)*, i32 addrspace(1)*)*, i32 (i8 addrspace(4)*, i32 addrspace(1)*)* addrspace(4)* %4, align 8
+  %call = tail call i32 %5(i8 addrspace(4)* %3, i32 addrspace(1)* %0) #2
+  ret i32 %call
+}
+
+; CHECK-LABEL: define void @f1
+; CHECK: %1 = load i32 (i8 addrspace(4)*, i32 addrspace(1)*)*, i32 (i8 addrspace(4)*, i32 addrspace(1)*)* addrspace(4)* bitcast (i8* addrspace(4)* getelementptr (%__aaa_struct, %__aaa_struct addrspace(4)* addrspacecast (%__aaa_struct addrspace(1)* @__aaa_struct_ptr to %__aaa_struct addrspace(4)*), i64 0, i32 0, i32 3) to i32 (i8 addrspace(4)*, i32 addrspace(1)*)* addrspace(4)*), align 8
+
+; Function Attrs: alwaysinline nounwind
+define void @f1(i32 addrspace(1)*) #1 {
+entry:
+  %call = tail call i32 @f0(i32 addrspace(1)* %0, i32 (i32 addrspace(1)*) addrspace(4)* addrspacecast (i32 (i32 addrspace(1)*) addrspace(1)* bitcast (%__aaa_struct addrspace(1)* @__aaa_struct_ptr to i32 (i32 addrspace(1)*) addrspace(1)*) to i32 (i32 addrspace(1)*) addrspace(4)*)) #3
+  store i32 %call, i32 addrspace(1)* %0, align 4
+  %call1 = tail call i32 @f0(i32 addrspace(1)* %0, i32 (i32 addrspace(1)*) addrspace(4)* addrspacecast (i32 (i32 addrspace(1)*) addrspace(1)* bitcast ({ i8**, i32, i32, i8*, %struct.__block_descriptor addrspace(1)* } addrspace(1)* getelementptr inbounds (%__aaa_struct, %__aaa_struct addrspace(1)* @__aaa_struct_ptr, i32 0, i32 3) to i32 (i32 addrspace(1)*) addrspace(1)*) to i32 (i32 addrspace(1)*) addrspace(4)*)) #3
+  store i32 %call1, i32 addrspace(1)* %0, align 4
+  ret void
+}
+
+; Function Attrs: alwaysinline norecurse nounwind readonly
+define i32 @__f1_block_invoke(i8 addrspace(4)* nocapture readnone, i32 addrspace(1)* nocapture readonly) #0 {
+entry:
+  %2 = load i32, i32 addrspace(1)* %1, align 4
+  %add = add nsw i32 %2, 1
+  ret i32 %add
+}
+
+attributes #0 = { alwaysinline norecurse nounwind readonly }
+attributes #1 = { alwaysinline nounwind }
+attributes #2 = { nobuiltin nounwind }
+attributes #3 = { nobuiltin }