llvm-6502/test/Analysis/ScalarEvolution/2008-07-19-WrappingIV.ll

; RUN: llvm-as < %s | opt -analyze -scalar-evolution -disable-output \
; RUN:   -scalar-evolution-max-iterations=0 | grep {backedge-taken count is 113}
; PR2088

define void @fun() {
entry:
        br label %loop
loop:
        %i = phi i8 [ 0, %entry ], [ %i.next, %loop ]
        %i.next = add i8 %i, 18
        %cond = icmp ne i8 %i.next, 4
        br i1 %cond, label %loop, label %exit
exit:
        ret void
}
Add -disable-output to a bunch of tests that don't care about the output. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73633 91177308-0d34-0410-b5e6-96231b3b80d8 2009-06-17 20:56:26 +00:00			`; RUN: llvm-as < %s \| opt -analyze -scalar-evolution -disable-output \`
Rename ScalarEvolution's getIterationCount to getBackedgeTakenCount, 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. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65382 91177308-0d34-0410-b5e6-96231b3b80d8 2009-02-24 18:55:53 +00:00			`; RUN: -scalar-evolution-max-iterations=0 \| grep {backedge-taken count is 113}`
Fix PR2088. Use modulo linear equation solver to compute loop iteration count. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53810 91177308-0d34-0410-b5e6-96231b3b80d8 2008-07-20 15:55:14 +00:00			`; PR2088`

			`define void @fun() {`
			`entry:`
			`br label %loop`
			`loop:`
			`%i = phi i8 [ 0, %entry ], [ %i.next, %loop ]`
			`%i.next = add i8 %i, 18`
			`%cond = icmp ne i8 %i.next, 4`
			`br i1 %cond, label %loop, label %exit`
			`exit:`
			`ret void`
			`}`