llvm-mirror/test/Transforms/LoopIndexSplit/PR3913.ll

; RUN: opt < %s -loop-index-split -S | not grep "icmp ne"

define i32 @main() {
entry:
	br label %header

header:
	%r = phi i32 [ 0, %entry ], [ %r3, %skip ]
	%i = phi i32 [ 0, %entry ], [ %i1, %skip ]
	%cond = icmp eq i32 %i, 99
	br i1 %cond, label %body, label %skip

body:
	br label %skip

skip:
	%r3 = phi i32 [ %r, %header ], [ 3, %body ]
	%i1 = add i32 %i, 1
	%exitcond = icmp eq i32 %i1, 10
	br i1 %exitcond, label %exit, label %header

exit:
	ret i32 %r3
}
Change tests from "opt %s" to "opt < %s" so that opt doesn't see the input filename so that opt doesn't print the input filename in the output so that grep lines in the tests don't unintentionally match strings in the input filename. llvm-svn: 81537 2009-09-11 20:01:28 +02:00			`; RUN: opt < %s -loop-index-split -S \| not grep "icmp ne"`
Fix PR3913, patch by Jakub Staszak! llvm-svn: 80327 2009-08-28 02:43:14 +02:00
			`define i32 @main() {`
			`entry:`
			`br label %header`

			`header:`
			`%r = phi i32 [ 0, %entry ], [ %r3, %skip ]`
			`%i = phi i32 [ 0, %entry ], [ %i1, %skip ]`
			`%cond = icmp eq i32 %i, 99`
			`br i1 %cond, label %body, label %skip`

			`body:`
			`br label %skip`

			`skip:`
			`%r3 = phi i32 [ %r, %header ], [ 3, %body ]`
			`%i1 = add i32 %i, 1`
			`%exitcond = icmp eq i32 %i1, 10`
			`br i1 %exitcond, label %exit, label %header`

			`exit:`
			`ret i32 %r3`
			`}`