88599bf6f4
We don't have enough information to know if struct types being bitcast will cause validation failures or not, so be conservative and allow such cases to persist (fot now). Fixes: https://bugs.llvm.org/show_bug.cgi?id=38711 Subscribers: dschuff, jgravelle-google, aheejin, sunfish, llvm-commits Differential Revision: https://reviews.llvm.org/D51460 llvm-svn: 341010
76 lines
2.6 KiB
LLVM
76 lines
2.6 KiB
LLVM
; RUN: llc < %s -asm-verbose=false -wasm-keep-registers | FileCheck %s
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; Test that function pointer casts that require conversions of arguments or
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; return types are converted to unreachable.
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target datalayout = "e-m:e-p:32:32-i64:64-n32:64-S128"
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target triple = "wasm32-unknown-unknown"
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declare i32 @has_i64_arg(i64)
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declare i32 @has_ptr_arg(i8*)
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; CHECK-LABEL: test_invalid_rtn:
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; CHECK-NEXT: i32.const $push[[L0:[0-9]+]]=, 0{{$}}
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; CHECK-NEXT: i32.call $push[[L1:[0-9]+]]=, .Lhas_i64_arg_bitcast_invalid.2@FUNCTION, $pop[[L0]]{{$}}
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; CHECK-NEXT: drop $pop[[L1]]{{$}}
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; CHECK-NEXT: i64.const $push[[L0:[0-9]+]]=, 0{{$}}
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; CHECK-NEXT: i64.call $push[[L1:[0-9]+]]=, .Lhas_i64_arg_bitcast_invalid@FUNCTION, $pop[[L0]]{{$}}
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; CHECK-NEXT: drop $pop[[L1]]{{$}}
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; CHECK-NEXT: end_function
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define void @test_invalid_rtn() {
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entry:
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call i32 bitcast (i32 (i64)* @has_i64_arg to i32 (i32)*)(i32 0)
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call [1 x i64] bitcast (i32 (i64)* @has_i64_arg to [1 x i64] (i64)*)(i64 0)
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ret void
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}
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; CHECK-LABEL: test_struct_rtn:
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; CHECK: call has_i64_arg@FUNCTION, $pop6, $pop0
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define void @test_struct_rtn() {
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call {i32, i32} bitcast (i32 (i64)* @has_i64_arg to {i32, i32} (i64)*)(i64 0)
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ret void
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}
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; CHECK-LABEL: test_invalid_arg:
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; CHECK-NEXT: i32.const $push[[L0:[0-9]+]]=, 2{{$}}
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; CHECK-NEXT: i32.call $push[[L1:[0-9]+]]=, .Lhas_ptr_arg_bitcast_invalid.4@FUNCTION, $pop[[L0]]{{$}}
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; CHECK-NEXT: drop $pop[[L1]]{{$}}
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; CHECK-NEXT: i32.const $push[[L0:[0-9]+]]=, 2{{$}}
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; CHECK-NEXT: i32.call $push[[L1:[0-9]+]]=, has_ptr_arg@FUNCTION, $pop[[L0]]{{$}}
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; CHECK-NEXT: drop $pop[[L1]]{{$}}
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; CHECK-NEXT: i64.const $push[[L0:[0-9]+]]=, 3{{$}}
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; CHECK-NEXT: i32.call $push[[L1:[0-9]+]]=, .Lhas_ptr_arg_bitcast_invalid@FUNCTION, $pop[[L0]]{{$}}
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; CHECK-NEXT: drop $pop[[L1]]{{$}}
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; CHECK-NEXT: end_function
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define void @test_invalid_arg() {
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entry:
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call i32 bitcast (i32 (i8*)* @has_ptr_arg to i32 (i8)*)(i8 2)
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call i32 bitcast (i32 (i8*)* @has_ptr_arg to i32 (i32)*)(i32 2)
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call i32 bitcast (i32 (i8*)* @has_ptr_arg to i32 (i64)*)(i64 3)
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ret void
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}
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; CHECK-LABEL: .Lhas_i64_arg_bitcast_invalid:
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; CHECK-NEXT: .param i64
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; CHECK-NEXT: .result i64
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; CHECK-NEXT: unreachable
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; CHECK-NEXT: end_function
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; CHECK-LABEL: .Lhas_i64_arg_bitcast_invalid.2:
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; CHECK-NEXT: .param i32
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; CHECK-NEXT: .result i32
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; CHECK-NEXT: unreachable
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; CHECK-NEXT: end_function
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; CHECK-LABEL: .Lhas_ptr_arg_bitcast_invalid:
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; CHECK-NEXT: .param i64
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; CHECK-NEXT: .result i32
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; CHECK-NEXT: unreachable
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; CHECK-NEXT: end_function
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; CHECK-LABEL: .Lhas_ptr_arg_bitcast_invalid.4:
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; CHECK-NEXT: .param i32
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; CHECK-NEXT: .result i32
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; CHECK-NEXT: unreachable
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; CHECK-NEXT: end_function
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