derek.holloway
7502bf64a4
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72 lines
2.9 KiB
LLVM
72 lines
2.9 KiB
LLVM
; RUN: opt %loadNPMPolly '-passes=polly-custom<scops>' -polly-print-scops -disable-output < %s 2>&1 | FileCheck %s
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;
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; https://github.com/llvm/llvm-project/issues/190128
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;
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; void func(int arg, unsigned char arr_4[11]) {
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; int shl1 = 2147483592LL << arg; // 2147483592
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; int trunc1 = (short)(shl1); // -56
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; int start = trunc1 + 56; // = 0
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; for (short i_0 = start; i_0 < 1; i_0 += 1) {
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; arr_4[i_0] = i_0;
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; for (int i_2 = 1; i_2 < 3; i_2 += 1)
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; ; // somehow this matters -- different CFG
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; }
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; }
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;
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; The constraint -58 <= shl < 32768 (ignorable trunc range) must be checked in an RTC (here: InvalidConstant).
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; Alternatively, %conv6 could be used as a parameter, instead of %shl.
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; CHECK: Context:
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; CHECK-NEXT: [shl] -> { : -9223372036854775808 <= shl <= 9223372036854775800 }
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; CHECK: Assumed Context:
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; CHECK-NEXT: [shl] -> { : }
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; CHECK: Invalid Context:
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; CHECK-NEXT: [shl] -> { : shl <= -57 or shl >= 32768 }
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; CHECK: Defined Behavior Context:
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; CHECK-NEXT: [shl] -> { : -56 <= shl <= 32710 }
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target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
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; Function Attrs: nofree noinline norecurse nosync nounwind memory(argmem: write) uwtable
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define dso_local void @func(i32 noundef %arg, ptr noundef writeonly captures(none) %arr_4) local_unnamed_addr #0 {
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entry:
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%sh_prom = zext nneg i32 %arg to i64
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%shl = shl i64 2147483592, %sh_prom
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%conv1 = trunc i64 %shl to i16
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%add = add i16 %conv1, 56
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%cmp22 = icmp slt i16 %add, 1
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br i1 %cmp22, label %for.body, label %for.cond.cleanup
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for.cond.cleanup: ; preds = %for.body, %entry
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ret void
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for.body: ; preds = %for.body, %entry
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%i_0.023 = phi i16 [ %add15, %for.body ], [ %add, %entry ]
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%conv6 = trunc i16 %i_0.023 to i8
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%idxprom = sext i16 %i_0.023 to i64
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%arrayidx = getelementptr inbounds i8, ptr %arr_4, i64 %idxprom
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store i8 %conv6, ptr %arrayidx, align 1, !tbaa !8
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%add15 = add nsw i16 %i_0.023, 1
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%cmp = icmp ugt i16 %i_0.023, 32766
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br i1 %cmp, label %for.body, label %for.cond.cleanup, !llvm.loop !9
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}
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attributes #0 = { nofree noinline norecurse nosync nounwind memory(argmem: write) uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
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!llvm.module.flags = !{!0, !1, !2}
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!llvm.ident = !{!3}
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!llvm.errno.tbaa = !{!4}
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!0 = !{i32 8, !"PIC Level", i32 2}
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!1 = !{i32 7, !"PIE Level", i32 2}
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!2 = !{i32 7, !"uwtable", i32 2}
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!3 = !{!"clang version 23.0.0git (/home/meinersbur/src/llvm/polly/_src/clang a2d3783b451c0c19a5eb09b1ab9a1c66d81ab6ca)"}
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!4 = !{!5, !5, i64 0}
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!5 = !{!"int", !6, i64 0}
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!6 = !{!"omnipotent char", !7, i64 0}
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!7 = !{!"Simple C/C++ TBAA"}
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!8 = !{!6, !6, i64 0}
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!9 = distinct !{!9, !10, !11}
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!10 = !{!"llvm.loop.mustprogress"}
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!11 = !{!"llvm.loop.unroll.disable"}
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