35 lines
1022 B
LLVM
35 lines
1022 B
LLVM
; RUN: opt < %s -analyze -scalar-evolution | \
|
|
; RUN: grep {backedge-taken count is 4}
|
|
; PR1101
|
|
|
|
@A = weak global [1000 x i32] zeroinitializer, align 32
|
|
|
|
|
|
define void @test(i32 %N) {
|
|
entry:
|
|
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
|
|
}
|