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to more accurately describe what it does. Expand its doxygen comment to describe what the backedge-taken count is and how it differs from the actual iteration count of the loop. Adjust names and comments in associated code accordingly. llvm-svn: 65382
16 lines
364 B
LLVM
16 lines
364 B
LLVM
; RUN: llvm-as < %s | opt -scalar-evolution -analyze | grep {Loop header: backedge-taken count is (0 smax %n)}
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define void @foo(i32 %n) {
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entry:
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br label %header
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header:
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%i = phi i32 [ 0, %entry ], [ %i.inc, %next ]
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%cond = icmp sgt i32 %n, %i
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br i1 %cond, label %next, label %return
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next:
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%i.inc = add i32 %i, 1
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br label %header
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return:
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ret void
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}
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