68a534e9bf
This test was testing both typed and opaque pointers. Remove the typed pointer check lines, and update the input IR to use opaque pointers. Note that with opaque pointers, the "bitcast" is not explicit, but rather just a mismatch in function type between the call and the declaration.
217 lines
6.3 KiB
LLVM
217 lines
6.3 KiB
LLVM
; RUN: llc < %s -asm-verbose=false -wasm-disable-explicit-locals -wasm-keep-registers -enable-emscripten-cxx-exceptions | FileCheck %s
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; Test that function pointer casts are replaced with wrappers.
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target triple = "wasm32-unknown-unknown"
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define void @has_i32_arg(i32) {
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entry:
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ret void
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}
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declare void @has_struct_arg({i32})
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declare i32 @has_i32_ret()
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declare void @vararg(...)
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declare void @plain(i32)
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declare void @foo0()
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declare void @foo1()
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declare void @foo2()
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declare void @foo3()
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; CHECK-LABEL: test:
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; CHECK: call .Lhas_i32_arg_bitcast{{$}}
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; CHECK-NEXT: call .Lhas_i32_arg_bitcast{{$}}
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; CHECK-NEXT: call .Lhas_i32_ret_bitcast{{$}}
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; CHECK-NEXT: call $drop=, has_i32_ret
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; CHECK-NEXT: i32.const $push[[L0:[0-9]+]]=, 0
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; CHECK-NEXT: call .Lfoo0_bitcast, $pop[[L0]]{{$}}
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; CHECK-NEXT: i32.const $push[[L1:[0-9]+]]=, 0
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; CHECK-NEXT: call .Lfoo0_bitcast, $pop[[L1]]{{$}}
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; CHECK-NEXT: i32.const $push[[L2:[0-9]+]]=, 0
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; CHECK-NEXT: call .Lfoo0_bitcast, $pop[[L2]]{{$}}
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; CHECK-NEXT: call foo0
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; CHECK-NEXT: call $drop=, .Lfoo1_bitcast{{$}}
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; CHECK-NEXT: call foo2{{$}}
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; CHECK-NEXT: call foo1{{$}}
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; CHECK-NEXT: call foo3{{$}}
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; CHECK-NEXT: end_function
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define void @test() {
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entry:
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call void @has_i32_arg()
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call void @has_i32_arg()
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call void @has_i32_ret()
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call i32 @has_i32_ret()
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call void @foo0(i32 0)
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call void @foo0(i32 0)
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call void @foo0(i32 0)
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call void @foo0()
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%t = call i32 @foo1()
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call void @foo2()
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call void @foo1()
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call void @foo3()
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ret void
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}
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; Calling aliases should also generate a wrapper
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@alias_i32_arg = weak hidden alias void (i32), ptr @has_i32_arg
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; CHECK-LABEL: test_alias:
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; CHECK: call .Lhas_i32_arg_bitcast
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define void @test_alias() {
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entry:
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call void @alias_i32_arg()
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ret void
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}
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; CHECK-LABEL: test_structs:
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; CHECK: call .Lhas_i32_arg_bitcast.2, $pop{{[0-9]+}}, $pop{{[0-9]+$}}
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; CHECK: call .Lhas_i32_arg_bitcast.1, $0, $pop2
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; CHECK: call .Lhas_struct_arg_bitcast{{$}}
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define void @test_structs() {
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entry:
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call void @has_i32_arg(i32 5, {i32} {i32 6})
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call {i32, i64} @has_i32_arg(i32 7)
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call void @has_struct_arg()
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ret void
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}
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; CHECK-LABEL: test_structs_unhandled:
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; CHECK: call has_struct_arg, $pop{{[0-9]+$}}
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; CHECK: call has_struct_arg, $pop{{[0-9]+$}}
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; CHECK: call has_i32_ret, $pop{{[0-9]+$}}
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define void @test_structs_unhandled() {
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entry:
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call void @has_struct_arg({i32} {i32 3})
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call void @has_struct_arg({i64} {i64 4})
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call {i32, i32} @has_i32_ret()
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ret void
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}
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; CHECK-LABEL: test_varargs:
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; CHECK: global.set
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; CHECK: i32.const $push[[L3:[0-9]+]]=, 0{{$}}
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; CHECK-NEXT: call .Lvararg_bitcast, $pop[[L3]]{{$}}
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; CHECK-NEXT: i32.const $push[[L4:[0-9]+]]=, 0{{$}}
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; CHECK-NEXT: i32.store 0($[[L5:[0-9]+]]), $pop[[L4]]{{$}}
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; CHECK-NEXT: call .Lplain_bitcast, $[[L5]]{{$}}
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define void @test_varargs() {
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call void @vararg(i32 0)
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call void (...) @plain(i32 0)
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ret void
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}
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; Don't use wrappers when the value is stored in memory
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@global_func = hidden local_unnamed_addr global ptr null
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; CHECK-LABEL: test_store:
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; CHECK: i32.const $push[[L0:[0-9]+]]=, 0{{$}}
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; CHECK-NEXT: i32.const $push[[L1:[0-9]+]]=, has_i32_ret{{$}}
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; CHECK-NEXT: i32.store global_func($pop[[L0]]), $pop[[L1]]{{$}}
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define void @test_store() {
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store ptr @has_i32_ret, ptr @global_func
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ret void
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}
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; CHECK-LABEL: test_load:
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; CHECK-NEXT: .functype test_load () -> (i32){{$}}
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; CHECK-NEXT: i32.const $push[[L0:[0-9]+]]=, 0{{$}}
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; CHECK-NEXT: i32.load $push[[L1:[0-9]+]]=, global_func($pop[[L0]]){{$}}
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; CHECK-NEXT: call_indirect $push{{[0-9]+}}=, $pop[[L1]]{{$}}
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define i32 @test_load() {
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%1 = load ptr, ptr @global_func
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%2 = call i32 %1()
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ret i32 %2
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}
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; Don't use wrappers when the value is passed to a function call
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declare void @call_func(ptr)
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; CHECK-LABEL: test_argument:
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; CHECK: i32.const $push[[L0:[0-9]+]]=, has_i32_ret{{$}}
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; CHECK-NEXT: call call_func, $pop[[L0]]{{$}}
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; CHECK-NEXT: i32.const $push[[L1:[0-9]+]]=, has_i32_arg{{$}}
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; CHECK-NEXT: call call_func, $pop[[L1]]{{$}}
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define void @test_argument() {
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call void @call_func(ptr @has_i32_ret)
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call void @call_func(ptr @has_i32_arg)
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ret void
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}
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; Invokes should be treated like calls
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; CHECK-LABEL: test_invoke:
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; CHECK: i32.const $push[[L1:[0-9]+]]=, call_func{{$}}
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; CHECK-NEXT: i32.const $push[[L0:[0-9]+]]=, has_i32_ret{{$}}
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; CHECK-NEXT: call invoke_vi, $pop[[L1]], $pop[[L0]]{{$}}
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; CHECK: i32.const $push[[L3:[0-9]+]]=, call_func{{$}}
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; CHECK-NEXT: i32.const $push[[L2:[0-9]+]]=, has_i32_arg{{$}}
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; CHECK-NEXT: call invoke_vi, $pop[[L3]], $pop[[L2]]{{$}}
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; CHECK: i32.const $push[[L4:[0-9]+]]=, .Lhas_i32_arg_bitcast{{$}}
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; CHECK-NEXT: call invoke_v, $pop[[L4]]{{$}}
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declare i32 @personality(...)
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define void @test_invoke() personality ptr @personality {
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entry:
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invoke void @call_func(ptr @has_i32_ret)
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to label %cont unwind label %lpad
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cont:
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invoke void @call_func(ptr @has_i32_arg)
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to label %cont2 unwind label %lpad
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cont2:
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invoke void @has_i32_arg()
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to label %end unwind label %lpad
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lpad:
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%0 = landingpad { ptr, i32 }
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catch ptr null
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br label %end
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end:
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ret void
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}
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; CHECK-LABEL: .Lhas_i32_arg_bitcast:
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; CHECK-NEXT: .functype .Lhas_i32_arg_bitcast () -> ()
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; CHECK-NEXT: call has_i32_arg, $0{{$}}
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; CHECK-NEXT: end_function
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; CHECK-LABEL: .Lhas_i32_arg_bitcast.1:
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; CHECK-NEXT: .functype .Lhas_i32_arg_bitcast.1 (i32, i32) -> ()
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; CHECK-NEXT: call has_i32_arg, $1{{$}}
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; CHECK-NEXT: end_function
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; CHECK-LABEL: .Lhas_i32_arg_bitcast.2:
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; CHECK-NEXT: .functype .Lhas_i32_arg_bitcast.2 (i32, i32) -> ()
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; CHECK-NEXT: call has_i32_arg, $0{{$}}
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; CHECK-NEXT: end_function
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; CHECK-LABEL: .Lhas_i32_ret_bitcast:
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; CHECK: call $drop=, has_i32_ret{{$}}
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; CHECK-NEXT: end_function
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; CHECK-LABEL: .Lvararg_bitcast:
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; CHECK: call vararg, $1{{$}}
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; CHECK: end_function
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; CHECK-LABEL: .Lplain_bitcast:
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; CHECK: call plain, $1{{$}}
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; CHECK: end_function
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; CHECK-LABEL: .Lfoo0_bitcast:
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; CHECK-NEXT: .functype .Lfoo0_bitcast (i32) -> ()
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; CHECK-NEXT: call foo0{{$}}
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; CHECK-NEXT: end_function
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; CHECK-LABEL: .Lfoo1_bitcast:
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; CHECK-NEXT: .functype .Lfoo1_bitcast () -> (i32)
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; CHECK-NEXT: call foo1{{$}}
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; CHECK-NEXT: local.copy $push0=, $0
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; CHECK-NEXT: end_function
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