annotate test/Transforms/IndVarSimplify/2006-03-31-NegativeStride.ll @ 100:7d135dc70f03 LLVM 3.9

LLVM 3.9
author Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
date Tue, 26 Jan 2016 22:53:40 +0900 (2016-01-26)
parents 95c75e76d11b
children 1172e4bd9c6f
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1 ; PR726
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2 ; RUN: opt < %s -indvars -S | \
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3 ; RUN: grep "ret i32 27"
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5 ; Make sure to compute the right exit value based on negative strides.
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7 define i32 @test() {
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8 entry:
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9 br label %cond_true
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10
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11 cond_true: ; preds = %cond_true, %entry
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12 %a.0.0 = phi i32 [ 10, %entry ], [ %tmp4, %cond_true ] ; <i32> [#uses=2]
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13 %b.0.0 = phi i32 [ 0, %entry ], [ %tmp2, %cond_true ] ; <i32> [#uses=1]
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14 %tmp2 = add i32 %b.0.0, %a.0.0 ; <i32> [#uses=2]
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15 %tmp4 = add i32 %a.0.0, -1 ; <i32> [#uses=2]
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16 %tmp = icmp sgt i32 %tmp4, 7 ; <i1> [#uses=1]
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17 br i1 %tmp, label %cond_true, label %bb7
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19 bb7: ; preds = %cond_true
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20 ret i32 %tmp2
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21 }
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22