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c3c/test/test_suite/errors/fault_zero_switch.c3t

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// #target: macos-x64
module test;
import std;
fn int main(String[] args)
{
int? tok;
switch (fault err = @catch(tok))
{
case {}:
io::printn("got valid token");
case io::EOF:
return 0;
default:
io::printfn("error: %s, %d", err, (usz)err);
}
return 0;
}
/* #expect: test.ll
; Function Attrs: nounwind uwtable
define i32 @test.main(ptr %0, i64 %1) #0 {
entry:
%args = alloca %"char[][]", align 8
%tok = alloca i32, align 4
%tok.f = alloca i64, align 8
%err = alloca i64, align 8
%blockret = alloca i64, align 8
%f = alloca i64, align 8
%switch = alloca i64, align 8
%len = alloca i64, align 8
%error_var = alloca i64, align 8
%retparam = alloca i64, align 8
%error_var6 = alloca i64, align 8
%error_var12 = alloca i64, align 8
%varargslots = alloca [2 x %any], align 16
%taddr = alloca i64, align 8
%retparam22 = alloca i64, align 8
store ptr %0, ptr %args, align 8
%ptradd = getelementptr inbounds i8, ptr %args, i64 8
store i64 %1, ptr %ptradd, align 8
store i64 0, ptr %tok.f, align 8
store i32 0, ptr %tok, align 4
br label %testblock
testblock: ; preds = %entry
%optval = load i64, ptr %tok.f, align 8
%not_err = icmp eq i64 %optval, 0
%2 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
br i1 %2, label %after_check, label %assign_optional
assign_optional: ; preds = %testblock
store i64 %optval, ptr %f, align 8
br label %end_block
after_check: ; preds = %testblock
store i64 0, ptr %f, align 8
br label %end_block
end_block: ; preds = %after_check, %assign_optional
%3 = load i64, ptr %f, align 8
%i2b = icmp ne i64 %3, 0
br i1 %i2b, label %if.then, label %if.exit
if.then: ; preds = %end_block
%4 = load i64, ptr %f, align 8
store i64 %4, ptr %blockret, align 8
br label %expr_block.exit
if.exit: ; preds = %end_block
store i64 0, ptr %blockret, align 8
br label %expr_block.exit
expr_block.exit: ; preds = %if.exit, %if.then
%5 = load i64, ptr %blockret, align 8
store i64 %5, ptr %err, align 8
%6 = load i64, ptr %err, align 8
store i64 %6, ptr %switch, align 8
br label %switch.entry
switch.entry: ; preds = %expr_block.exit
%7 = load i64, ptr %switch, align 8
%eq = icmp eq i64 0, %7
br i1 %eq, label %switch.case, label %next_if
switch.case: ; preds = %switch.entry
%8 = call ptr @std.io.stdout()
%9 = call i64 @std.io.File.write(ptr %retparam, ptr %8, ptr @.str, i64 15)
%not_err3 = icmp eq i64 %9, 0
%10 = call i1 @llvm.expect.i1(i1 %not_err3, i1 true)
br i1 %10, label %after_check5, label %assign_optional4
assign_optional4: ; preds = %switch.case
store i64 %9, ptr %error_var, align 8
br label %guard_block
after_check5: ; preds = %switch.case
br label %noerr_block
guard_block: ; preds = %assign_optional4
br label %voiderr
noerr_block: ; preds = %after_check5
%11 = load i64, ptr %retparam, align 8
store i64 %11, ptr %len, align 8
%12 = call i64 @std.io.File.write_byte(ptr %8, i8 zeroext 10)
%not_err7 = icmp eq i64 %12, 0
%13 = call i1 @llvm.expect.i1(i1 %not_err7, i1 true)
br i1 %13, label %after_check9, label %assign_optional8
assign_optional8: ; preds = %noerr_block
store i64 %12, ptr %error_var6, align 8
br label %guard_block10
after_check9: ; preds = %noerr_block
br label %noerr_block11
guard_block10: ; preds = %assign_optional8
br label %voiderr
noerr_block11: ; preds = %after_check9
%14 = call i64 @std.io.File.flush(ptr %8)
%not_err13 = icmp eq i64 %14, 0
%15 = call i1 @llvm.expect.i1(i1 %not_err13, i1 true)
br i1 %15, label %after_check15, label %assign_optional14
assign_optional14: ; preds = %noerr_block11
store i64 %14, ptr %error_var12, align 8
br label %guard_block16
after_check15: ; preds = %noerr_block11
br label %noerr_block17
guard_block16: ; preds = %assign_optional14
br label %voiderr
noerr_block17: ; preds = %after_check15
%16 = load i64, ptr %len, align 8
%add = add i64 %16, 1
br label %voiderr
voiderr: ; preds = %noerr_block17, %guard_block16, %guard_block10, %guard_block
br label %switch.exit
next_if: ; preds = %switch.entry
%eq18 = icmp eq i64 ptrtoint (ptr @std.io.EOF to i64), %7
br i1 %eq18, label %switch.case19, label %next_if20
switch.case19: ; preds = %next_if
ret i32 0
next_if20: ; preds = %next_if
br label %switch.default
switch.default: ; preds = %next_if20
%17 = insertvalue %any undef, ptr %err, 0
%18 = insertvalue %any %17, i64 ptrtoint (ptr @"$ct.fault" to i64), 1
store %any %18, ptr %varargslots, align 16
%19 = load i64, ptr %err, align 8
store i64 %19, ptr %taddr, align 8
%20 = insertvalue %any undef, ptr %taddr, 0
%21 = insertvalue %any %20, i64 ptrtoint (ptr @"$ct.ulong" to i64), 1
%ptradd21 = getelementptr inbounds i8, ptr %varargslots, i64 16
store %any %21, ptr %ptradd21, align 16
%22 = call i64 @std.io.printfn(ptr %retparam22, ptr @.str.1, i64 13, ptr %varargslots, i64 2)
br label %switch.exit
switch.exit: ; preds = %switch.default, %voiderr
ret i32 0
}