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82 lines
2.1 KiB
Plaintext
82 lines
2.1 KiB
Plaintext
// #target: macos-x64
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fn int* elvis(int *x, int *y)
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{
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return x ?: y;
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}
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fn int* elvis2(int *x, int *y)
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{
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return x ?: (y ?: x);
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}
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fn bool elvis3(bool x, bool y)
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{
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return x ?: y;
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}
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/* #expect: elvis.ll
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define ptr @elvis.elvis(ptr %0, ptr %1) #0 {
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entry:
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%i2b = icmp ne ptr %0, null
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br i1 %i2b, label %cond.lhs, label %cond.rhs
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cond.lhs: ; preds = %entry
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br label %cond.phi
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cond.rhs: ; preds = %entry
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br label %cond.phi
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cond.phi: ; preds = %cond.rhs, %cond.lhs
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%val = phi ptr [ %0, %cond.lhs ], [ %1, %cond.rhs ]
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ret ptr %val
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}
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; Function Attrs: nounwind uwtable
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define ptr @elvis.elvis2(ptr %0, ptr %1) #0 {
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entry:
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%i2b = icmp ne ptr %0, null
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br i1 %i2b, label %cond.lhs, label %cond.rhs
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cond.lhs: ; preds = %entry
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br label %cond.phi4
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cond.rhs: ; preds = %entry
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%i2b1 = icmp ne ptr %1, null
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br i1 %i2b1, label %cond.lhs2, label %cond.rhs3
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cond.lhs2: ; preds = %cond.rhs
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br label %cond.phi
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cond.rhs3: ; preds = %cond.rhs
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br label %cond.phi
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cond.phi: ; preds = %cond.rhs3, %cond.lhs2
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%val = phi ptr [ %1, %cond.lhs2 ], [ %0, %cond.rhs3 ]
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br label %cond.phi4
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cond.phi4: ; preds = %cond.phi, %cond.lhs
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%val5 = phi ptr [ %0, %cond.lhs ], [ %val, %cond.phi ]
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ret ptr %val5
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}
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define zeroext i8 @elvis.elvis3(i8 zeroext %0, i8 zeroext %1) #0 {
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entry:
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%2 = trunc i8 %0 to i1
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br i1 %2, label %cond.lhs, label %cond.rhs
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cond.lhs: ; preds = %entry
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br label %cond.phi
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cond.rhs: ; preds = %entry
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%3 = trunc i8 %1 to i1
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br label %cond.phi
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cond.phi: ; preds = %cond.rhs, %cond.lhs
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%val = phi i1 [ %2, %cond.lhs ], [ %3, %cond.rhs ]
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%4 = zext i1 %val to i8
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ret i8 %4
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}
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