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8e3e378c03
FindBetterNeighborChains simulateanously improves the chain dependencies of a chain of related stores avoiding the generation of extra token factors. For chains longer than the GatherAllAliasDepths, stores further down in the chain will necessarily fail, a potentially significant waste and preventing otherwise trivial parallelization. This patch directly parallelize the chains of stores before improving each store. This generally improves DAG-level parallelism. Reviewers: courbet, spatel, RKSimon, bogner, efriedma, craig.topper, rnk Subscribers: sdardis, javed.absar, hiraditya, jrtc27, atanasyan, llvm-commits Differential Revision: https://reviews.llvm.org/D53552 llvm-svn: 346432
99 lines
4.5 KiB
LLVM
99 lines
4.5 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc %s -o - -mtriple=s390x-linux-gnu -mcpu=z13 -disable-basicaa | FileCheck %s
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; This test checks that we do not a reference to a deleted node.
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%0 = type { i32 }
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@g_11 = external dso_local unnamed_addr global i1, align 4
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@g_69 = external dso_local global i32, align 4
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@g_73 = external dso_local unnamed_addr global i32, align 4
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@g_832 = external dso_local constant %0, align 4
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@g_938 = external dso_local unnamed_addr global i64, align 8
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; Function Attrs: nounwind
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define void @main() local_unnamed_addr #0 {
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; CHECK-LABEL: main:
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; CHECK: # %bb.0:
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; CHECK-NEXT: lhi %r0, 1
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; CHECK-NEXT: larl %r1, g_938
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; CHECK-NEXT: lhi %r2, 0
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; CHECK-NEXT: lhi %r3, 4
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; CHECK-NEXT: larl %r4, g_11
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; CHECK-NEXT: .LBB0_1: # =>This Inner Loop Header: Depth=1
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; CHECK-NEXT: strl %r0, g_73
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; CHECK-NEXT: strl %r2, g_69
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; CHECK-NEXT: lrl %r5, g_832
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; CHECK-NEXT: lrl %r5, g_832
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; CHECK-NEXT: lrl %r5, g_832
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; CHECK-NEXT: lrl %r5, g_832
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; CHECK-NEXT: lrl %r5, g_832
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; CHECK-NEXT: lrl %r5, g_832
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; CHECK-NEXT: lrl %r5, g_832
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; CHECK-NEXT: lrl %r5, g_832
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; CHECK-NEXT: lrl %r5, g_832
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; CHECK-NEXT: lrl %r5, g_832
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; CHECK-NEXT: lrl %r5, g_832
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; CHECK-NEXT: lrl %r5, g_832
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; CHECK-NEXT: lrl %r5, g_832
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; CHECK-NEXT: lrl %r5, g_832
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; CHECK-NEXT: lrl %r5, g_832
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; CHECK-NEXT: lrl %r5, g_832
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; CHECK-NEXT: lrl %r5, g_832
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; CHECK-NEXT: lrl %r5, g_832
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; CHECK-NEXT: lrl %r5, g_832
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; CHECK-NEXT: lrl %r5, g_832
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; CHECK-NEXT: lrl %r5, g_832
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; CHECK-NEXT: agsi 0(%r1), 24
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; CHECK-NEXT: lrl %r5, g_832
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; CHECK-NEXT: strl %r3, g_69
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; CHECK-NEXT: mvi 0(%r4), 1
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; CHECK-NEXT: j .LBB0_1
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br label %1
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; <label>:1: ; preds = %1, %0
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store i32 1, i32* @g_73, align 4
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%2 = load i64, i64* @g_938, align 8
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store i32 0, i32* @g_69, align 4
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%3 = load volatile i32, i32* getelementptr inbounds (%0, %0* @g_832, i64 0, i32 0), align 4
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%4 = load volatile i32, i32* getelementptr inbounds (%0, %0* @g_832, i64 0, i32 0), align 4
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%5 = load volatile i32, i32* getelementptr inbounds (%0, %0* @g_832, i64 0, i32 0), align 4
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%6 = load volatile i32, i32* getelementptr inbounds (%0, %0* @g_832, i64 0, i32 0), align 4
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store i32 1, i32* @g_69, align 4
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%7 = load volatile i32, i32* getelementptr inbounds (%0, %0* @g_832, i64 0, i32 0), align 4
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%8 = load volatile i32, i32* getelementptr inbounds (%0, %0* @g_832, i64 0, i32 0), align 4
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store i32 3, i32* @g_69, align 4
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%9 = load volatile i32, i32* getelementptr inbounds (%0, %0* @g_832, i64 0, i32 0), align 4
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%10 = load volatile i32, i32* getelementptr inbounds (%0, %0* @g_832, i64 0, i32 0), align 4
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store i32 1, i32* @g_69, align 4
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%11 = load volatile i32, i32* getelementptr inbounds (%0, %0* @g_832, i64 0, i32 0), align 4
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store i32 2, i32* @g_69, align 4
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%12 = load volatile i32, i32* getelementptr inbounds (%0, %0* @g_832, i64 0, i32 0), align 4
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store i32 3, i32* @g_69, align 4
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%13 = load volatile i32, i32* getelementptr inbounds (%0, %0* @g_832, i64 0, i32 0), align 4
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store i32 0, i32* @g_69, align 4
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%14 = load volatile i32, i32* getelementptr inbounds (%0, %0* @g_832, i64 0, i32 0), align 4
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%15 = load volatile i32, i32* getelementptr inbounds (%0, %0* @g_832, i64 0, i32 0), align 4
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%16 = load volatile i32, i32* getelementptr inbounds (%0, %0* @g_832, i64 0, i32 0), align 4
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%17 = load volatile i32, i32* getelementptr inbounds (%0, %0* @g_832, i64 0, i32 0), align 4
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store i32 1, i32* @g_69, align 4
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%18 = load volatile i32, i32* getelementptr inbounds (%0, %0* @g_832, i64 0, i32 0), align 4
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store i32 2, i32* @g_69, align 4
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%19 = load volatile i32, i32* getelementptr inbounds (%0, %0* @g_832, i64 0, i32 0), align 4
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store i32 3, i32* @g_69, align 4
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%20 = load volatile i32, i32* getelementptr inbounds (%0, %0* @g_832, i64 0, i32 0), align 4
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store i32 0, i32* @g_69, align 4
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%21 = load volatile i32, i32* getelementptr inbounds (%0, %0* @g_832, i64 0, i32 0), align 4
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store i32 1, i32* @g_69, align 4
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%22 = load volatile i32, i32* getelementptr inbounds (%0, %0* @g_832, i64 0, i32 0), align 4
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store i32 2, i32* @g_69, align 4
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%23 = load volatile i32, i32* getelementptr inbounds (%0, %0* @g_832, i64 0, i32 0), align 4
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store i32 3, i32* @g_69, align 4
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%24 = add i64 %2, 24
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store i64 %24, i64* @g_938, align 8
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%25 = load volatile i32, i32* getelementptr inbounds (%0, %0* @g_832, i64 0, i32 0), align 4
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store i32 4, i32* @g_69, align 4
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store i1 true, i1* @g_11, align 4
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br label %1
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}
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