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3f4f926b6a
Relanding after rewriting undef.ll test to avoid host-dependant
endianness.
As discussed in D34087, rewrite areNonVolatileConsecutiveLoads using
generic checks. Also, propagate missing local handling from there to
BaseIndexOffset checks.
Tests of note:
* test/CodeGen/X86/build-vector* - Improved.
* test/CodeGen/BPF/undef.ll - Improved store alignment allows an
additional store merge
* test/CodeGen/X86/clear_upper_vector_element_bits.ll - This is a
case we already do not handle well. Here, the DAG is improved, but
scheduling causes a code size degradation.
Reviewers: RKSimon, craig.topper, spatel, andreadb, filcab
Subscribers: nemanjai, llvm-commits
Differential Revision: https://reviews.llvm.org/D34472
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@307114 91177308-0d34-0410-b5e6-96231b3b80d8
70 lines
3.5 KiB
LLVM
70 lines
3.5 KiB
LLVM
; RUN: not llc < %s -march=bpfel | FileCheck -check-prefixes=CHECK,EL %s
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; RUN: not 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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; CHECK: r1 = r10
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; CHECK: r1 += -2
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; CHECK: r2 = 0
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; CHECK: *(u16 *)(r1 + 6) = r2
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; CHECK: *(u16 *)(r1 + 4) = r2
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; CHECK: *(u16 *)(r1 + 2) = r2
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; EL: r1 = 134678021
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; EB: r1 = 84281096
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; CHECK: *(u32 *)(r10 - 8) = r1
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; CHECK: r1 = 9
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; CHECK: *(u8 *)(r10 - 4) = r1
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; CHECK: r1 = 10
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; CHECK: *(u8 *)(r10 - 3) = r1
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; CHECK: *(u16 *)(r10 + 24) = r2
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; CHECK: *(u16 *)(r10 + 22) = r2
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; CHECK: *(u16 *)(r10 + 20) = r2
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; CHECK: *(u16 *)(r10 + 18) = r2
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; CHECK: *(u16 *)(r10 + 16) = r2
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; CHECK: *(u16 *)(r10 + 14) = r2
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; CHECK: *(u16 *)(r10 + 12) = r2
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; CHECK: *(u16 *)(r10 + 10) = r2
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; CHECK: *(u16 *)(r10 + 8) = r2
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; CHECK: *(u16 *)(r10 + 6) = r2
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; CHECK: *(u16 *)(r10 - 2) = r2
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; CHECK: *(u16 *)(r10 + 26) = r2
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; CHECK: r2 = r10
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; CHECK: r2 += -8
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; CHECK: r1 = <MCOperand Expr:(routing)>ll
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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, i32 1, 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, i32, i1) #1
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declare i32 @bpf_map_lookup_elem(...) #2
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