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6655b5e078
Summary: A number of optimizations are inhibited by single-use TokenFactors not being merged into the TokenFactor using it. This makes we consider if we can do the merge immediately. Most tests changes here are due to the change in visitation causing minor reorderings and associated reassociation of paired memory operations. CodeGen tests with non-reordering changes: X86/aligned-variadic.ll -- memory-based add folded into stored leaq value. X86/constant-combiners.ll -- Optimizes out overlap between stores. X86/pr40631_deadstore_elision -- folds constant byte store into preceding quad word constant store. Reviewers: RKSimon, craig.topper, spatel, efriedma, courbet Reviewed By: courbet Subscribers: dylanmckay, sdardis, nemanjai, jvesely, nhaehnle, javed.absar, eraman, hiraditya, kbarton, jrtc27, atanasyan, jsji, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D59260 llvm-svn: 356068
66 lines
3.4 KiB
LLVM
66 lines
3.4 KiB
LLVM
; RUN: llc < %s -march=bpfel | FileCheck -check-prefixes=CHECK,EL %s
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; RUN: llc < %s -march=bpfeb | FileCheck -check-prefixes=CHECK,EB %s
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%struct.bpf_map_def = type { i32, i32, i32, i32 }
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%struct.__sk_buff = type opaque
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%struct.routing_key_2 = type { [6 x i8] }
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@routing = global %struct.bpf_map_def { i32 1, i32 6, i32 12, i32 1024 }, section "maps", align 4
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@routing_miss_0 = global %struct.bpf_map_def { i32 1, i32 1, i32 12, i32 1 }, section "maps", align 4
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@test1 = global %struct.bpf_map_def { i32 2, i32 4, i32 8, i32 1024 }, section "maps", align 4
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@test1_miss_4 = global %struct.bpf_map_def { i32 2, i32 1, i32 8, i32 1 }, section "maps", align 4
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@_license = global [4 x i8] c"GPL\00", section "license", align 1
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@llvm.used = appending global [6 x i8*] [i8* getelementptr inbounds ([4 x i8], [4 x i8]* @_license, i32 0, i32 0), i8* bitcast (i32 (%struct.__sk_buff*)* @ebpf_filter to i8*), i8* bitcast (%struct.bpf_map_def* @routing to i8*), i8* bitcast (%struct.bpf_map_def* @routing_miss_0 to i8*), i8* bitcast (%struct.bpf_map_def* @test1 to i8*), i8* bitcast (%struct.bpf_map_def* @test1_miss_4 to i8*)], section "llvm.metadata"
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; Function Attrs: nounwind uwtable
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define i32 @ebpf_filter(%struct.__sk_buff* nocapture readnone %ebpf_packet) #0 section "socket1" {
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; EL: r1 = 11033905661445 ll
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; EB: r1 = 361984551142686720 ll
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; CHECK: *(u64 *)(r10 - 8) = r1
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; CHECK: r1 = 0
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; CHECK-DAG: *(u16 *)(r10 + 24) = r1
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; CHECK-DAG: *(u16 *)(r10 + 22) = r1
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; CHECK-DAG: *(u16 *)(r10 + 20) = r1
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; CHECK-DAG: *(u16 *)(r10 + 18) = r1
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; CHECK-DAG: *(u16 *)(r10 + 16) = r1
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; CHECK-DAG: *(u16 *)(r10 + 14) = r1
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; CHECK-DAG: *(u16 *)(r10 + 12) = r1
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; CHECK-DAG: *(u16 *)(r10 + 10) = r1
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; CHECK-DAG: *(u16 *)(r10 + 8) = r1
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; CHECK-DAG: *(u16 *)(r10 + 6) = r1
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; CHECK-DAG: *(u16 *)(r10 + 4) = r1
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; CHECK-DAG: *(u16 *)(r10 + 2) = r1
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; CHECK-DAG: *(u16 *)(r10 + 0) = r1
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; CHECK-DAG: *(u16 *)(r10 + 26) = r1
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; CHECK: r2 = r10
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; CHECK: r2 += -8
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; CHECK: r1 = routing
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; CHECK: call bpf_map_lookup_elem
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; CHECK: exit
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%key = alloca %struct.routing_key_2, align 1
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%1 = getelementptr inbounds %struct.routing_key_2, %struct.routing_key_2* %key, i64 0, i32 0, i64 0
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store i8 5, i8* %1, align 1
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%2 = getelementptr inbounds %struct.routing_key_2, %struct.routing_key_2* %key, i64 0, i32 0, i64 1
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store i8 6, i8* %2, align 1
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%3 = getelementptr inbounds %struct.routing_key_2, %struct.routing_key_2* %key, i64 0, i32 0, i64 2
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store i8 7, i8* %3, align 1
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%4 = getelementptr inbounds %struct.routing_key_2, %struct.routing_key_2* %key, i64 0, i32 0, i64 3
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store i8 8, i8* %4, align 1
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%5 = getelementptr inbounds %struct.routing_key_2, %struct.routing_key_2* %key, i64 0, i32 0, i64 4
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store i8 9, i8* %5, align 1
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%6 = getelementptr inbounds %struct.routing_key_2, %struct.routing_key_2* %key, i64 0, i32 0, i64 5
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store i8 10, i8* %6, align 1
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%7 = getelementptr inbounds %struct.routing_key_2, %struct.routing_key_2* %key, i64 1, i32 0, i64 0
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call void @llvm.memset.p0i8.i64(i8* %7, i8 0, i64 30, i1 false)
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%8 = call i32 (%struct.bpf_map_def*, %struct.routing_key_2*, ...) bitcast (i32 (...)* @bpf_map_lookup_elem to i32 (%struct.bpf_map_def*, %struct.routing_key_2*, ...)*)(%struct.bpf_map_def* nonnull @routing, %struct.routing_key_2* nonnull %key) #3
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ret i32 undef
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}
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; Function Attrs: nounwind argmemonly
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declare void @llvm.memset.p0i8.i64(i8* nocapture, i8, i64, i1) #1
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declare i32 @bpf_map_lookup_elem(...) #2
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