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52 lines
1.2 KiB
Plaintext
52 lines
1.2 KiB
Plaintext
// #target: macos-x64
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module test;
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import std::io;
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fn void? canFail()
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{
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if (io::EOF~! == 69) { }
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}
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fn int main()
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{
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if (catch err = canFail()) { }
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return 0;
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}
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/* #expect: test.ll
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define i64 @test.canFail() #0 {
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entry:
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%error_var = alloca i64, align 8
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store i64 ptrtoint (ptr @std.io.EOF to i64), ptr %error_var, align 8
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br label %guard_block
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guard_block: ; preds = %entry
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%0 = load i64, ptr %error_var, align 8
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ret i64 %0
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}
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define i32 @main() #0 {
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entry:
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%err = alloca i64, align 8
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br label %testblock
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testblock: ; preds = %entry
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%0 = call i64 @test.canFail()
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%not_err = icmp eq i64 %0, 0
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%1 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
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br i1 %1, label %after_check, label %assign_optional
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assign_optional: ; preds = %testblock
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store i64 %0, ptr %err, align 8
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br label %end_block
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after_check: ; preds = %testblock
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store i64 0, ptr %err, align 8
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br label %end_block
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end_block: ; preds = %after_check, %assign_optional
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%2 = load i64, ptr %err, align 8
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%i2b = icmp ne i64 %2, 0
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ret i32 0
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}
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