llvm-6502/test/Transforms/IndVarsSimplify/tripcount_infinite.llx
Reid Spencer e4d87aa2de For PR950:
This patch removes the SetCC instructions and replaces them with the ICmp
and FCmp instructions. The SetCondInst instruction has been removed and
been replaced with ICmpInst and FCmpInst.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32751 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-23 06:05:41 +00:00

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; These tests have an infinite trip count. We obviously shouldn't remove the
; loops! :)
;
; RUN: llvm-upgrade < %s | llvm-as | opt -indvars -adce -simplifycfg | llvm-dis | grep icmp | wc -l > %t2
; RUN: llvm-upgrade < %s | llvm-as | llvm-dis | grep icmp | wc -l > %t1
; RUN: diff %t1 %t2
int %infinite_linear() { ;; test for (i = 1; i != 100; i += 2)
entry:
br label %loop
loop:
%i = phi int [ 1, %entry ], [ %i.next, %loop ]
%i.next = add int %i, 2
%c = setne int %i, 100
br bool %c, label %loop, label %loopexit
loopexit:
ret int %i
}
int %infinite_quadratic() { ;; test for (i = 1; i*i != 63; ++i)
entry:
br label %loop
loop:
%i = phi int [ 1, %entry ], [ %i.next, %loop ]
%isquare = mul int %i, %i
%i.next = add int %i, 1
%c = setne int %isquare, 63
br bool %c, label %loop, label %loopexit
loopexit:
ret int %i
}