7a0f7dbf2d
Reapply of a22d1c2225543aa9ae7882f6b1a97ee7b2c95574. Using this PR for pre-merge CI. Instead of relying on any pass manager to schedule Polly's passes, add Polly's own pipeline manager which is seen as a monolithic pass in LLVM's pass manager. Polly's former passes are now phases of the new PhaseManager component. Relying on LLVM's pass manager (the legacy as well as the New Pass Manager) to manage Polly's phases never was a good fit that the PhaseManager resolves: * Polly passes were modifying analysis results, in particular RegionInfo and ScopInfo. This means that there was not just one unique and "definite" analysis result, the actual result depended on which analyses ran prior, and the pass manager was not allowed to throw away cached analyses or prior SCoP optimizations would have been forgotten. The LLVM pass manger's persistance of analysis results is not contractual but designed for caching. * Polly depends on a particular execution order of passes and regions (e.g. regression tests, invalidation of consecutive SCoPs). LLVM's pass manager does not guarantee any excecution order. * Polly does not completely preserve DominatorTree, RegionInfo, LoopInfo, or ScalarEvolution, but only as-needed for Polly's own uses. Because the ScopDetection object stores references to those analyses, it still had to lie to the pass manager that they would be preserved, or the pass manager would have released and recomputed the invalidated analysis objects that ScopDetection/ScopInfo was still referencing. To ensure that no non-Polly pass would see these not-completely-preserved analyses, all analyses still had to be thrown away after the ScopPassManager, respectively with a BarrierNoopPass in case of the LPM. * The NPM's PassInstrumentation wraps the IR unit into an `llvm::Any` object, but implementations such as PrintIRInstrumentation call llvm_unreachable on encountering an unknown IR unit, such as SCoPs, with no extension points to add support. Hence LLVM crashes when dumping IR between SCoP passes (such as `-print-before-changed` with Polly being active). The new PhaseManager uses some command line options that previously belonged to Polly's legacy passes, such as `-polly-print-detect` (so the option will continue to work). Hence the LPM support is incompatible with the new approach and support for it is removed.
83 lines
4.4 KiB
LLVM
83 lines
4.4 KiB
LLVM
; RUN: opt %loadNPMPolly -aa-pipeline=tbaa '-passes=polly<no-default-opts>' -polly-allow-differing-element-types -disable-output %s
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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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%struct.hoge = type { ptr, ptr, ptr, i32, i32, ptr, i32, i32, i32, i32, double, i32, i32, i32, ptr, [4 x ptr], [4 x ptr], [4 x ptr], [16 x i8], [16 x i8], [16 x i8], i32, ptr, i32, i32, i32, i32, i32, i32, i32, i32, i32, i8, i16, i16, i32, i32, i32, i32, i32, i32, i32, [4 x ptr], i32, i32, i32, [10 x i32], i32, i32, i32, i32, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr }
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%struct.widget = type { ptr, ptr, ptr, ptr, ptr, i32, %struct.hoge.0, i32, i64, ptr, i32, ptr, i32, i32 }
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%struct.quux = type { ptr, ptr, ptr, i32, i32 }
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%struct.hoge.0 = type { [8 x i32], [48 x i8] }
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%struct.barney = type { ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, i64 }
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%struct.ham = type opaque
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%struct.wombat = type opaque
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%struct.foo = type { ptr, i64, i64, i32, i32 }
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%struct.wibble = type { ptr, i64, ptr, ptr, ptr }
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%struct.foo.1 = type { i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, ptr, ptr }
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%struct.hoge.2 = type { [64 x i16], i32 }
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%struct.blam = type { [17 x i8], [256 x i8], i32 }
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%struct.barney.3 = type { i32, [4 x i32], i32, i32, i32, i32 }
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%struct.foo.4 = type { ptr, ptr, ptr, i32, i32 }
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%struct.wombat.5 = type { ptr, ptr }
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%struct.blam.6 = type { ptr, ptr }
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%struct.foo.7 = type { ptr, ptr }
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%struct.bar = type { ptr, ptr, ptr, ptr, ptr, ptr }
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%struct.wibble.8 = type { ptr, ptr }
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%struct.barney.9 = type { ptr, ptr, i32 }
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%struct.hoge.10 = type { ptr, ptr }
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%struct.bar.11 = type { ptr, ptr, ptr }
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%struct.foo.12 = type { %struct.foo.4, i32, i32, i32, i32 }
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; Function Attrs: nounwind uwtable
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define void @eggs(ptr %arg) {
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bb:
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%tmp = load ptr, ptr undef, align 8, !tbaa !1
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br label %bb5
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bb5: ; preds = %bb
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%tmp6 = getelementptr inbounds %struct.hoge, ptr %arg, i32 0, i32 51
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%tmp7 = load ptr, ptr %tmp6, align 8, !tbaa !9
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%tmp9 = getelementptr inbounds %struct.foo.12, ptr %tmp7, i32 0, i32 4
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%tmp10 = load i32, ptr %tmp9, align 4, !tbaa !10
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%tmp151 = load i32, ptr %tmp, align 4, !tbaa !13
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%tmp162 = icmp slt i32 0, %tmp151
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br i1 %tmp162, label %bb17.lr.ph, label %bb22
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bb17.lr.ph: ; preds = %bb5
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br label %bb17
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bb17: ; preds = %bb17.lr.ph, %bb17
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%tmp143 = phi i32 [ 0, %bb17.lr.ph ], [ %tmp21, %bb17 ]
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%tmp18 = sext i32 %tmp143 to i64
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%tmp19 = getelementptr inbounds %struct.hoge, ptr %arg, i32 0, i32 42
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%tmp20 = getelementptr inbounds [4 x ptr], ptr %tmp19, i64 0, i64 %tmp18
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store ptr undef, ptr %tmp20, align 8, !tbaa !15
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%tmp21 = add nsw i32 %tmp143, 1
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%tmp15 = load i32, ptr %tmp, align 4, !tbaa !13
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%tmp16 = icmp slt i32 %tmp21, %tmp15
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br i1 %tmp16, label %bb17, label %bb13.bb22_crit_edge
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bb13.bb22_crit_edge: ; preds = %bb17
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br label %bb22
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bb22: ; preds = %bb13.bb22_crit_edge, %bb5
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ret void
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}
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!llvm.ident = !{!0}
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!0 = !{!"clang version 3.9.0 (trunk 259751) (llvm/trunk 259869)"}
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!1 = !{!2, !3, i64 240}
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!2 = !{!"jpeg_compress_struct", !3, i64 0, !3, i64 8, !3, i64 16, !6, i64 24, !6, i64 28, !3, i64 32, !6, i64 40, !6, i64 44, !6, i64 48, !4, i64 52, !7, i64 56, !6, i64 64, !6, i64 68, !4, i64 72, !3, i64 80, !4, i64 88, !4, i64 120, !4, i64 152, !4, i64 184, !4, i64 200, !4, i64 216, !6, i64 232, !3, i64 240, !6, i64 248, !6, i64 252, !6, i64 256, !6, i64 260, !6, i64 264, !4, i64 268, !6, i64 272, !6, i64 276, !6, i64 280, !4, i64 284, !8, i64 286, !8, i64 288, !6, i64 292, !6, i64 296, !6, i64 300, !6, i64 304, !6, i64 308, !6, i64 312, !6, i64 316, !4, i64 320, !6, i64 352, !6, i64 356, !6, i64 360, !4, i64 364, !6, i64 404, !6, i64 408, !6, i64 412, !6, i64 416, !3, i64 424, !3, i64 432, !3, i64 440, !3, i64 448, !3, i64 456, !3, i64 464, !3, i64 472, !3, i64 480, !3, i64 488}
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!3 = !{!"any pointer", !4, i64 0}
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!4 = !{!"omnipotent char", !5, i64 0}
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!5 = !{!"Simple C/C++ TBAA"}
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!6 = !{!"int", !4, i64 0}
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!7 = !{!"double", !4, i64 0}
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!8 = !{!"short", !4, i64 0}
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!9 = !{!2, !3, i64 424}
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!10 = !{!11, !6, i64 44}
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!11 = !{!"", !12, i64 0, !4, i64 32, !6, i64 36, !6, i64 40, !6, i64 44}
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!12 = !{!"jpeg_comp_master", !3, i64 0, !3, i64 8, !3, i64 16, !6, i64 24, !6, i64 28}
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!13 = !{!14, !6, i64 0}
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!14 = !{!"", !6, i64 0, !4, i64 4, !6, i64 20, !6, i64 24, !6, i64 28, !6, i64 32}
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!15 = !{!3, !3, i64 0}
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