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1; RUN: opt -S -passes=loop-vectorize,dce,instcombine -force-vector-width=4 -force-vector-interleave=1 < %s | FileCheck %s2 3target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"4 5; PR160736 7; Because we were caching value pointers across a function call that could RAUW8; we would generate an poison value store below:9; SCEVExpander::expandCodeFor would change a value (the start value of an10; induction) that we cached in the induction variable list.11 12; CHECK-LABEL: @test_vh(13; CHECK-NOT: store <4 x i8> poison14 15define void @test_vh(ptr %ptr265, ptr %ptr266, i32 %sub267) {16entry:17 br label %loop18 19loop:20 %inc = phi i32 [ %sub267, %entry ], [ %add, %loop]21 %ext.inc = sext i32 %inc to i6422 %add.ptr265 = getelementptr inbounds i32, ptr %ptr265, i64 %ext.inc23 %add.ptr266 = getelementptr inbounds i32, ptr %ptr266, i64 %ext.inc24 %add = add i32 %inc, 925 %cmp = icmp slt i32 %add, 14026 br i1 %cmp, label %block1, label %loop27 28block1:29 %sub267.lcssa = phi i32 [ %add, %loop ]30 %add.ptr266.lcssa = phi ptr [ %add.ptr266, %loop ]31 %add.ptr265.lcssa = phi ptr [ %add.ptr265, %loop ]32 br label %do.body27233 34do.body272:35 %row_width.5 = phi i32 [ %sub267.lcssa, %block1 ], [ %dec, %do.body272 ]36 %sp.4 = phi ptr [ %add.ptr266.lcssa, %block1 ], [ %incdec.ptr273, %do.body272 ]37 %dp.addr.4 = phi ptr [ %add.ptr265.lcssa, %block1 ], [ %incdec.ptr274, %do.body272 ]38 %incdec.ptr273 = getelementptr inbounds i8, ptr %sp.4, i64 139 %tmp31 = load i8, ptr %sp.4, align 140 %incdec.ptr274 = getelementptr inbounds i8, ptr %dp.addr.4, i64 141 store i8 %tmp31, ptr %dp.addr.4, align 142 %dec = add i32 %row_width.5, -143 %cmp276 = icmp eq i32 %dec, 044 br i1 %cmp276, label %loop.exit, label %do.body27245 46loop.exit:47 ret void48}49