llvm-6502/test/Analysis/ScalarEvolution/2008-12-08-FiniteSGE.ll
Dan Gohman f2f6ce65b7 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81537 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-11 18:01:28 +00:00

26 lines
963 B
LLVM

; RUN: opt < %s -analyze -scalar-evolution -disable-output | grep {backedge-taken count is 255}
; XFAIL: *
define i32 @foo(i32 %x, i32 %y, i32* %lam, i32* %alp) nounwind {
bb1.thread:
br label %bb1
bb1: ; preds = %bb1, %bb1.thread
%indvar = phi i32 [ 0, %bb1.thread ], [ %indvar.next, %bb1 ] ; <i32> [#uses=4]
%i.0.reg2mem.0 = sub i32 255, %indvar ; <i32> [#uses=2]
%0 = getelementptr i32* %alp, i32 %i.0.reg2mem.0 ; <i32*> [#uses=1]
%1 = load i32* %0, align 4 ; <i32> [#uses=1]
%2 = getelementptr i32* %lam, i32 %i.0.reg2mem.0 ; <i32*> [#uses=1]
store i32 %1, i32* %2, align 4
%3 = sub i32 254, %indvar ; <i32> [#uses=1]
%4 = icmp slt i32 %3, 0 ; <i1> [#uses=1]
%indvar.next = add i32 %indvar, 1 ; <i32> [#uses=1]
br i1 %4, label %bb2, label %bb1
bb2: ; preds = %bb1
%tmp10 = mul i32 %indvar, %x ; <i32> [#uses=1]
%z.0.reg2mem.0 = add i32 %tmp10, %y ; <i32> [#uses=1]
%5 = add i32 %z.0.reg2mem.0, %x ; <i32> [#uses=1]
ret i32 %5
}