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Add two test cases to cover apintification change.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36476 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Zhou Sheng 2007-04-26 16:44:48 +00:00
parent c125c00e68
commit fc24a72d9e
2 changed files with 67 additions and 0 deletions
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32
test/Analysis/ScalarEvolution/SolveQuadraticEquation.ll Normal file
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@ -0,0 +1,32 @@
; RUN: llvm-as < %s | opt -analyze -scalar-evolution |& \
; RUN: grep {100 iterations}
; PR1101
@A = weak global [1000 x i32] zeroinitializer, align 32
define void @test(i32 %N) {
entry:
"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0]
br label %bb3
bb: ; preds = %bb3
%tmp = getelementptr [1000 x i32]* @A, i32 0, i32 %i.0 ; <i32*> [#uses=1]
store i32 123, i32* %tmp
%tmp2 = add i32 %i.0, 1 ; <i32> [#uses=1]
br label %bb3
bb3: ; preds = %bb, %entry
%i.0 = phi i32 [ 2, %entry ], [ %tmp2, %bb ] ; <i32> [#uses=3]
%SQ = mul i32 %i.0, %i.0
%tmp4 = mul i32 %i.0, 2
%tmp5 = sub i32 %SQ, %tmp4
%tmp3 = icmp sle i32 %tmp5, 9999 ; <i1> [#uses=1]
br i1 %tmp3, label %bb, label %bb5
bb5: ; preds = %bb3
br label %return
return: ; preds = %bb5
ret void
}

35
test/Analysis/ScalarEvolution/trip-count2.ll Normal file
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@ -0,0 +1,35 @@
; RUN: llvm-as < %s | opt -analyze -scalar-evolution |& \
; RUN: grep {4 iterations}
; PR1101
@A = weak global [1000 x i32] zeroinitializer, align 32
define void @test(i32 %N) {
entry:
"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0]
br label %bb3
bb: ; preds = %bb3
%tmp = getelementptr [1000 x i32]* @A, i32 0, i32 %i.0 ; <i32*> [#uses=1]
store i32 123, i32* %tmp
%tmp4 = mul i32 %i.0, 4 ; <i32> [#uses=1]
%tmp5 = or i32 %tmp4, 1
%tmp61 = xor i32 %tmp5, -2147483648
%tmp6 = trunc i32 %tmp61 to i16
%tmp71 = shl i16 %tmp6, 2
%tmp7 = zext i16 %tmp71 to i32
%tmp2 = add i32 %tmp7, %i.0
br label %bb3
bb3: ; preds = %bb, %entry
%i.0 = phi i32 [ 0, %entry ], [ %tmp2, %bb ] ; <i32> [#uses=3]
%tmp3 = icmp sle i32 %i.0, 9999 ; <i1> [#uses=1]
br i1 %tmp3, label %bb, label %bb5
bb5: ; preds = %bb3
br label %return
return: ; preds = %bb5
ret void
}