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# RUN: llvm-mc -triple=wasm32-unknown-unknown -mattr=+exception-handling < %s | FileCheck %s
# Check that it converts to .o without errors, but don't check any output:
# RUN: llvm-mc -triple=wasm32-unknown-unknown -filetype=obj -mattr=+exception-handling -o %t.o < %s
.tagtype __cpp_exception i32
.tagtype __c_longjmp i32
.functype foo () -> ()
eh_test:
.functype eh_test (exnref) -> ()
# try_table with all four kinds of catch clauses
block exnref
block
block () -> (i32, exnref)
block i32
try_table (catch __cpp_exception 0) (catch_ref __c_longjmp 1) (catch_all 2) (catch_all_ref 3)
i32.const 0
throw __cpp_exception
end_try_table
return
end_block
drop
return
end_block
throw_ref
end_block
return
end_block
drop
# You can use the same kind of catch clause more than once
block
block exnref
block
try_table (catch_all 0) (catch_all_ref 1) (catch_all 2)
call foo
end_try_table
end_block
return
end_block
drop
end_block
# Two catch clauses targeting the same block
block
try_table (catch_all 0) (catch_all 0)
end_try_table
end_block
# try_table with a return type
block
try_table f32 (catch_all 0)
f32.const 0.0
end_try_table
drop
end_block
# try_table with a multivalue type return
block
try_table () -> (i32, f32) (catch_all 0)
i32.const 0
f32.const 0.0
end_try_table
drop
drop
end_block
# catch-less try_tables
try_table
call foo
end_try_table
try_table i32
i32.const 0
end_try_table
drop
try_table () -> (i32, f32)
i32.const 0
f32.const 0.0
end_try_table
drop
drop
# try_table targeting loops
i32.const 0
loop (i32) -> ()
local.get 0
loop (exnref) -> ()
try_table (catch __cpp_exception 1) (catch_all_ref 0)
end_try_table
drop
end_loop
drop
end_loop
end_function
eh_legacy_test:
.functype eh_legacy_test () -> ()
# try-catch with catch, catch_all, throw, and rethrow
try
i32.const 3
throw __cpp_exception
catch __cpp_exception
drop
rethrow 0
catch __c_longjmp
drop
catch_all
rethrow 0
end_try
# Nested try-catch with a rethrow
try
call foo
catch_all
try
catch_all
rethrow 1
end_try
end_try
# try-catch with a single return value
try i32
i32.const 0
catch __cpp_exception
end_try
drop
# try-catch with a mulvivalue return
try () -> (i32, f32)
i32.const 0
f32.const 0.0
catch __cpp_exception
f32.const 1.0
end_try
drop
drop
# Catch-less try
try
call foo
end_try
end_function
# CHECK-LABEL: eh_test:
# CHECK: block exnref
# CHECK-NEXT: block
# CHECK-NEXT: block () -> (i32, exnref)
# CHECK-NEXT: block i32
# CHECK-NEXT: try_table (catch __cpp_exception 0) (catch_ref __c_longjmp 1) (catch_all 2) (catch_all_ref 3)
# CHECK: i32.const 0
# CHECK-NEXT: throw __cpp_exception
# CHECK-NEXT: end_try_table
# CHECK-NEXT: return
# CHECK-NEXT: end_block
# CHECK-NEXT: drop
# CHECK-NEXT: return
# CHECK-NEXT: end_block
# CHECK-NEXT: throw_ref
# CHECK-NEXT: end_block
# CHECK-NEXT: return
# CHECK-NEXT: end_block
# CHECK-NEXT: drop
# CHECK: block
# CHECK-NEXT: block exnref
# CHECK-NEXT: block
# CHECK-NEXT: try_table (catch_all 0) (catch_all_ref 1) (catch_all 2)
# CHECK: call foo
# CHECK-NEXT: end_try_table
# CHECK-NEXT: end_block
# CHECK-NEXT: return
# CHECK-NEXT: end_block
# CHECK-NEXT: drop
# CHECK-NEXT: end_block
# CHECK: block
# CHECK-NEXT: try_table (catch_all 0) (catch_all 0)
# CHECK: end_try_table
# CHECK-NEXT: end_block
# CHECK: block
# CHECK-NEXT: try_table f32 (catch_all 0)
# CHECK: f32.const 0x0p0
# CHECK-NEXT: end_try_table
# CHECK-NEXT: drop
# CHECK-NEXT: end_block
# CHECK: block
# CHECK-NEXT: try_table () -> (i32, f32) (catch_all 0)
# CHECK: i32.const 0
# CHECK-NEXT: f32.const 0x0p0
# CHECK-NEXT: end_try_table
# CHECK-NEXT: drop
# CHECK-NEXT: drop
# CHECK-NEXT: end_block
# CHECK: try_table
# CHECK-NEXT: call foo
# CHECK-NEXT: end_try_table
# CHECK: try_table i32
# CHECK-NEXT: i32.const 0
# CHECK-NEXT: end_try_table
# CHECK-NEXT: drop
# CHECK: try_table () -> (i32, f32)
# CHECK-NEXT: i32.const 0
# CHECK-NEXT: f32.const 0x0p0
# CHECK-NEXT: end_try_table
# CHECK-NEXT: drop
# CHECK-NEXT: drop
# CHECK: i32.const 0
# CHECK-NEXT: loop (i32) -> ()
# CHECK-NEXT: local.get 0
# CHECK-NEXT: loop (exnref) -> ()
# CHECK-NEXT: try_table (catch __cpp_exception 1) (catch_all_ref 0)
# CHECK: end_try_table
# CHECK-NEXT: drop
# CHECK-NEXT: end_loop
# CHECK-NEXT: drop
# CHECK-NEXT: end_loop
# CHECK: eh_legacy_test:
# CHECK: try
# CHECK-NEXT: i32.const 3
# CHECK-NEXT: throw __cpp_exception
# CHECK-NEXT: catch __cpp_exception
# CHECK-NEXT: drop
# CHECK-NEXT: rethrow 0
# CHECK-NEXT: catch __c_longjmp
# CHECK-NEXT: drop
# CHECK-NEXT: catch_all
# CHECK-NEXT: rethrow 0
# CHECK-NEXT: end_try
# CHECK: try
# CHECK-NEXT: call foo
# CHECK-NEXT: catch_all
# CHECK-NEXT: try
# CHECK-NEXT: catch_all
# CHECK-NEXT: rethrow 1
# CHECK-NEXT: end_try
# CHECK-NEXT: end_try
# CHECK: try i32
# CHECK-NEXT: i32.const 0
# CHECK-NEXT: catch __cpp_exception
# CHECK-NEXT: end_try
# CHECK-NEXT: drop
# CHECK: try () -> (i32, f32)
# CHECK-NEXT: i32.const 0
# CHECK-NEXT: f32.const 0x0p0
# CHECK-NEXT: catch __cpp_exception
# CHECK-NEXT: f32.const 0x1p0
# CHECK-NEXT: end_try
# CHECK-NEXT: drop
# CHECK-NEXT: drop
# CHECK: try
# CHECK-NEXT: call foo
# CHECK-NEXT: end_try
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