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llvm-project/llvm/test/CodeGen/WebAssembly/unsupported-function-bitcas...

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[WebAssembly] Don't abort on code with UB. Gracefully leave code that performs function-pointer bitcasts implying non-trivial pointer conversions alone, rather than aborting, since it's just undefined behavior. llvm-svn: 291326
2017-01-07 09:50:01 +08:00
; RUN: llc < %s -asm-verbose=false | FileCheck %s
; Test that function pointer casts that require conversions are not converted
; to wrappers. In theory some conversions could be supported, but currently no
; conversions are implemented.
target datalayout = "e-m:e-p:32:32-i64:64-n32:64-S128"
[WebAssembly] Convert the remaining unit tests to the new wasm-object-file target. To facilitate this, add a new hidden command-line option to disable the explicit-locals pass. That causes llc to emit invalid code that doesn't have all locals converted to get_local/set_local, however it simplifies testwriting in many cases. llvm-svn: 296540
2017-03-01 07:37:04 +08:00
target triple = "wasm32-unknown-unknown-wasm"
[WebAssembly] Don't abort on code with UB. Gracefully leave code that performs function-pointer bitcasts implying non-trivial pointer conversions alone, rather than aborting, since it's just undefined behavior. llvm-svn: 291326
2017-01-07 09:50:01 +08:00
; CHECK-LABEL: test:
; CHECK-NEXT: i32.const $push[[L0:[0-9]+]]=, 0{{$}}
; CHECK-NEXT: call has_i64_arg@FUNCTION, $pop[[L0]]{{$}}
[WebAssembly] Convert the remaining unit tests to the new wasm-object-file target. To facilitate this, add a new hidden command-line option to disable the explicit-locals pass. That causes llc to emit invalid code that doesn't have all locals converted to get_local/set_local, however it simplifies testwriting in many cases. llvm-svn: 296540
2017-03-01 07:37:04 +08:00
; CHECK-NEXT: i32.call $push{{[0-9]+}}=, has_i64_ret@FUNCTION{{$}}
; CHECK-NEXT: drop
; CHECK-NEXT: end_function
[WebAssembly] Don't abort on code with UB. Gracefully leave code that performs function-pointer bitcasts implying non-trivial pointer conversions alone, rather than aborting, since it's just undefined behavior. llvm-svn: 291326
2017-01-07 09:50:01 +08:00
; CHECK-NOT: .Lbitcast
declare void @has_i64_arg(i64)
declare i64 @has_i64_ret()
define void @test() {
entry:
call void bitcast (void (i64)* @has_i64_arg to void (i32)*)(i32 0)
%t = call i32 bitcast (i64 ()* @has_i64_ret to i32 ()*)()
ret void
}