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llvm-6502/test/Transforms/ADCE/2002-07-17-PHIAssertion.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

49 lines
1.6 KiB
LLVM

; This testcase was extracted from the gzip SPEC benchmark
;
; RUN: opt < %s -adce
@bk = external global i32 ; <i32*> [#uses=2]
@hufts = external global i32 ; <i32*> [#uses=1]
define i32 @inflate() {
bb0:
br label %bb2
bb2: ; preds = %bb6, %bb0
%reg128 = phi i32 [ %reg130, %bb6 ], [ 0, %bb0 ] ; <i32> [#uses=2]
br i1 true, label %bb4, label %bb3
bb3: ; preds = %bb2
br label %UnifiedExitNode
bb4: ; preds = %bb2
%reg117 = load i32* @hufts ; <i32> [#uses=2]
%cond241 = icmp ule i32 %reg117, %reg128 ; <i1> [#uses=1]
br i1 %cond241, label %bb6, label %bb5
bb5: ; preds = %bb4
br label %bb6
bb6: ; preds = %bb5, %bb4
%reg130 = phi i32 [ %reg117, %bb5 ], [ %reg128, %bb4 ] ; <i32> [#uses=1]
br i1 false, label %bb2, label %bb7
bb7: ; preds = %bb6
%reg126 = load i32* @bk ; <i32> [#uses=1]
%cond247 = icmp ule i32 %reg126, 7 ; <i1> [#uses=1]
br i1 %cond247, label %bb9, label %bb8
bb8: ; preds = %bb8, %bb7
%reg119 = load i32* @bk ; <i32> [#uses=1]
%cond256 = icmp ugt i32 %reg119, 7 ; <i1> [#uses=1]
br i1 %cond256, label %bb8, label %bb9
bb9: ; preds = %bb8, %bb7
br label %UnifiedExitNode
UnifiedExitNode: ; preds = %bb9, %bb3
%UnifiedRetVal = phi i32 [ 7, %bb3 ], [ 0, %bb9 ] ; <i32> [#uses=1]
ret i32 %UnifiedRetVal
}