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NEw "feature" test that cee should eventually handle 

llvm-svn: 4053
This commit is contained in:
Chris Lattner 2002-10-06 23:05:38 +00:00
parent d131986b0f
commit 3cf5bcf7e5
1 changed files with 44 additions and 0 deletions
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llvm/test/Regression/Transforms/CorrelatedExprs/looptest.ll Normal file
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; This testcase tests to see if adds and PHI's are handled in their full
; generality. This testcase comes from the following C code:
;
; void f() {
; int i;
; for (i = 1; i < 100; i++) {
; if (i)
; g();
; }
; }
;
; Note that this is a "feature" test, not a correctness test.
;
; RUN: if as < %s | opt -cee -simplifycfg | dis | grep cond213
; RUN: then exit 1
; RUN: else exit 0
; RUN: fi
;
implementation ; Functions:
declare void %g()
void %f() {
bb0: ; No predecessors!
br label %bb2
bb2: ; preds = %bb4, %bb0
%cann-indvar = phi int [ 0, %bb0 ], [ %add1-indvar, %bb4 ] ; <int> [#uses=2]
%add1-indvar = add int %cann-indvar, 1 ; <int> [#uses=2]
%cond213 = seteq int %add1-indvar, 0 ; <bool> [#uses=1]
br bool %cond213, label %bb4, label %bb3
bb3: ; preds = %bb2
call void %g( )
br label %bb4
bb4: ; preds = %bb3, %bb2
%reg109 = add int %cann-indvar, 2 ; <int> [#uses=1]
%cond217 = setle int %reg109, 99 ; <bool> [#uses=1]
br bool %cond217, label %bb2, label %bb5
bb5: ; preds = %bb4
ret void
}