a22d1c2225
This reverts commit e987ab11a6f3d3965ef26fc42c82db3e8b1d56f5. This broke premerge: 1. https://lab.llvm.org/staging/#/builders/192/builds/9521 2. https://github.com/llvm/llvm-project/actions/runs/19054182009 Notably this did not break inside the PR. Not exactly sure why. I realize that there is a lot of test churn here, but they're largely in polly where commit frequency is much lower, so a reapply of the patch should be clean.
57 lines
2.0 KiB
LLVM
57 lines
2.0 KiB
LLVM
; RUN: opt %loadNPMPolly '-passes=print<polly-detect>,scop(polly-codegen)' -polly-invariant-load-hoisting=true -disable-output < %s 2>&1 | FileCheck %s
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;
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; This crashed at some point as the pointer returned by the call
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; to @__errno_location is invariant and defined in the SCoP but not
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; loaded. Therefore it is not hoisted and consequently not available
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; at the beginning of the SCoP where we would need it if we would try
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; to hoist %tmp. We don't try to hoist %tmp anymore but this test still
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; checks that this passes to code generation and produces valid code.
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;
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; This SCoP is currently rejected because %call9 is not considered a valid
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; base pointer.
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;
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; CHECK-NOT: Valid Region for Scop
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;
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target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
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; Function Attrs: nounwind uwtable
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define void @fileblobSetFilename() {
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entry:
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br i1 undef, label %if.end, label %cleanup
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if.end: ; preds = %entry
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br i1 undef, label %land.lhs.true, label %if.end.18
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land.lhs.true: ; preds = %if.end
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%call9 = tail call ptr @__errno_location()
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%tmp = load i32, ptr %call9, align 4, !tbaa !1
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br i1 false, label %if.then.12, label %if.end.18
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if.then.12: ; preds = %land.lhs.true
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br label %if.end.18
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if.end.18: ; preds = %if.then.12, %land.lhs.true, %if.end
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%fd.0 = phi i32 [ undef, %if.then.12 ], [ undef, %land.lhs.true ], [ undef, %if.end ]
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br i1 undef, label %if.then.21, label %if.end.27
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if.then.21: ; preds = %if.end.18
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unreachable
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if.end.27: ; preds = %if.end.18
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br label %cleanup
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cleanup: ; preds = %if.end.27, %entry
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ret void
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}
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; Function Attrs: nounwind readnone
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declare ptr @__errno_location()
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!llvm.ident = !{!0}
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!0 = !{!"clang version 3.8.0 (trunk 250010) (llvm/trunk 250018)"}
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!1 = !{!2, !2, i64 0}
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!2 = !{!"int", !3, i64 0}
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!3 = !{!"omnipotent char", !4, i64 0}
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!4 = !{!"Simple C/C++ TBAA"}
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