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20 lines
599 B
Plaintext
20 lines
599 B
Plaintext
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; Linear scan does not currently coalesce any two variables that have
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; overlapping live intervals. When two overlapping intervals have the same
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; value, they can be joined though.
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;
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; RUN: llvm-as < %s | llc -march=x86 -regalloc=linearscan | not grep 'mov %[A-Z]\{2,3\}, %[A-Z]\{2,3\}'
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int %main() {
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%ptr = alloca uint
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br label %Loop
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Loop:
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%I = phi int [0, %0], [%i2, %Loop]
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%i2 = add int %I, 1
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%i3 = cast int %i2 to uint
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store uint %i3, uint* %ptr
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%C = seteq int %i2, 10
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br bool %C, label %Out, label %Loop
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Out:
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ret int 0
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}
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