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75 lines
2.3 KiB
LLVM
75 lines
2.3 KiB
LLVM
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; RUN: opt < %s -analyze -scalar-evolution | FileCheck %s
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; CHECK: %tmp3 = sext i8 %tmp2 to i32
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; CHECK: --> (sext i8 {0,+,1}<%bb1> to i32){{ U: [^ ]+ S: [^ ]+}}{{ *}}Exits: -1
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; CHECK: %tmp4 = mul i32 %tmp3, %i.02
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; CHECK: --> ((sext i8 {0,+,1}<%bb1> to i32) * {0,+,1}<%bb>){{ U: [^ ]+ S: [^ ]+}}{{ *}}Exits: {0,+,-1}<%bb>
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; These sexts are not foldable.
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target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64"
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@table = common global [32 x [256 x i32]] zeroinitializer, align 32 ; <[32 x [256 x i32]]*> [#uses=2]
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define i32 @main() nounwind {
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entry:
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br i1 false, label %bb5, label %bb.nph3
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bb.nph3: ; preds = %entry
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br label %bb
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bb: ; preds = %bb4, %bb.nph3
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%i.02 = phi i32 [ %tmp10, %bb4 ], [ 0, %bb.nph3 ] ; <i32> [#uses=3]
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br i1 false, label %bb3, label %bb.nph
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bb.nph: ; preds = %bb
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br label %bb1
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bb1: ; preds = %bb2, %bb.nph
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%j.01 = phi i32 [ %tmp8, %bb2 ], [ 0, %bb.nph ] ; <i32> [#uses=3]
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%tmp2 = trunc i32 %j.01 to i8 ; <i8> [#uses=1]
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%tmp3 = sext i8 %tmp2 to i32 ; <i32> [#uses=1]
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%tmp4 = mul i32 %tmp3, %i.02 ; <i32> [#uses=1]
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%tmp5 = sext i32 %i.02 to i64 ; <i64> [#uses=1]
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%tmp6 = sext i32 %j.01 to i64 ; <i64> [#uses=1]
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%tmp7 = getelementptr [32 x [256 x i32]], [32 x [256 x i32]]* @table, i64 0, i64 %tmp5, i64 %tmp6 ; <i32*> [#uses=1]
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store i32 %tmp4, i32* %tmp7, align 4
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%tmp8 = add i32 %j.01, 1 ; <i32> [#uses=2]
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br label %bb2
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bb2: ; preds = %bb1
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%phitmp1 = icmp sgt i32 %tmp8, 255 ; <i1> [#uses=1]
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br i1 %phitmp1, label %bb2.bb3_crit_edge, label %bb1
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bb2.bb3_crit_edge: ; preds = %bb2
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br label %bb3
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bb3: ; preds = %bb2.bb3_crit_edge, %bb
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%tmp10 = add i32 %i.02, 1 ; <i32> [#uses=2]
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br label %bb4
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bb4: ; preds = %bb3
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%phitmp = icmp sgt i32 %tmp10, 31 ; <i1> [#uses=1]
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br i1 %phitmp, label %bb4.bb5_crit_edge, label %bb
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bb4.bb5_crit_edge: ; preds = %bb4
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br label %bb5
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bb5: ; preds = %bb4.bb5_crit_edge, %entry
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%tmp12 = load i32, i32* getelementptr ([32 x [256 x i32]], [32 x [256 x i32]]* @table, i64 0, i64 9, i64 132), align 16 ; <i32> [#uses=1]
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%tmp13 = icmp eq i32 %tmp12, -1116 ; <i1> [#uses=1]
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br i1 %tmp13, label %bb7, label %bb6
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bb6: ; preds = %bb5
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call void @abort() noreturn nounwind
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unreachable
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bb7: ; preds = %bb5
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br label %return
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return: ; preds = %bb7
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ret i32 0
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}
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declare void @abort() noreturn nounwind
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