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43 lines
1.5 KiB
43 lines
1.5 KiB
;ModuleID = while_test.sy
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source_filename = "while_test.sy"
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target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-unknown-linux-gnu"
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;the above is copied
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define dso_local i32 @main() {
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%a = alloca i32, align 4
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%b = alloca i32, align 4
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store i32 0, i32* %b, align 4
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store i32 3, i32* %a, align 4
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br label %loop
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loop:
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%1 = load i32, i32* %a, align 4
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%cmp = icmp sgt i32 %1, 0
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br i1 %cmp, label %if.body, label %if.end
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if.body:
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%2 = load i32, i32* %b, align 4
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%3 = load i32, i32* %a, align 4
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%add = add nsw i32 %2, %3
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store i32 %add, i32* %b, align 4
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%4 = load i32, i32* %a, align 4
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%sub = add nsw i32 %4, -1
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store i32 %sub, i32* %a, align 4
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br label %loop
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if.end:
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%5 = load i32, i32* %b, align 4
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ret i32 %5
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}
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; the coming code is copied
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attributes #0 = { noinline nounwind optnone uwtable "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "frame-pointer"="all" "less-precise-fpmad"="false" "min-legal-vector-width"="0" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" }
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!llvm.module.flags = !{!0}
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!llvm.ident = !{!1}
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!0 = !{i32 1, !"wchar_size", i32 4}
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!1 = !{!"clang version 10.0.1 "}
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