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97 lines
2.3 KiB
Plaintext
97 lines
2.3 KiB
Plaintext
// #target: macos-x64
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module test;
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import std::io;
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faultdef MY_VAL1, MY_VAL2;
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struct Bar
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{
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int x;
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}
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fn void? test1() @maydiscard
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{
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Bar? x = MY_VAL1~;
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Bar y = x!;
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}
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fn void? test2() @maydiscard
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{
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Bar? x = {};
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Bar y = x!;
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}
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fn void main()
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{
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test1();
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test2();
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}
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/* #expect: test.ll
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define i64 @test.test1() #0 {
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entry:
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%x = alloca %Bar, align 4
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%x.f = alloca i64, align 8
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%y = alloca %Bar, align 4
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%error_var = alloca i64, align 8
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store i64 ptrtoint (ptr @test.MY_VAL1 to i64), ptr %x.f, align 8
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%optval = load i64, ptr %x.f, align 8
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%not_err = icmp eq i64 %optval, 0
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%0 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
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br i1 %0, label %after_check, label %assign_optional
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assign_optional: ; preds = %entry
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store i64 %optval, ptr %error_var, align 8
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br label %guard_block
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after_check: ; preds = %entry
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br label %noerr_block
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guard_block: ; preds = %assign_optional
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%1 = load i64, ptr %error_var, align 8
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ret i64 %1
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noerr_block: ; preds = %after_check
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call void @llvm.memcpy.p0.p0.i32(ptr align 4 %y, ptr align 4 %x, i32 4, i1 false)
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ret i64 0
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}
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define i64 @test.test2() #0 {
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entry:
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%x = alloca %Bar, align 4
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%x.f = alloca i64, align 8
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%y = alloca %Bar, align 4
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%error_var = alloca i64, align 8
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store i32 0, ptr %x, align 4
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store i64 0, ptr %x.f, align 8
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%optval = load i64, ptr %x.f, align 8
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%not_err = icmp eq i64 %optval, 0
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%0 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
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br i1 %0, label %after_check, label %assign_optional
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assign_optional: ; preds = %entry
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store i64 %optval, ptr %error_var, align 8
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br label %guard_block
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after_check: ; preds = %entry
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br label %noerr_block
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guard_block: ; preds = %assign_optional
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%1 = load i64, ptr %error_var, align 8
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ret i64 %1
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noerr_block: ; preds = %after_check
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call void @llvm.memcpy.p0.p0.i32(ptr align 4 %y, ptr align 4 %x, i32 4, i1 false)
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ret i64 0
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}
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define void @test.main() #0 {
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entry:
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%0 = call i64 @test.test1()
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%1 = call i64 @test.test2()
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ret void
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}
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