107 lines
2.7 KiB
LLVM
107 lines
2.7 KiB
LLVM
; RUN: opt < %s -S -falkor-hwpf-fix -mtriple aarch64 -mcpu=falkor | FileCheck %s
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; RUN: opt < %s -S -falkor-hwpf-fix -mtriple aarch64 -mcpu=cortex-a57 | FileCheck %s --check-prefix=NOHWPF
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; Check that strided access metadata is added to loads in inner loops when compiling for Falkor.
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; CHECK-LABEL: @hwpf1(
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; CHECK: load i32, i32* %gep, !falkor.strided.access !0
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; CHECK: load i32, i32* %gep2, !falkor.strided.access !0
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; NOHWPF-LABEL: @hwpf1(
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; NOHWPF: load i32, i32* %gep{{$}}
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; NOHWPF: load i32, i32* %gep2{{$}}
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define void @hwpf1(i32* %p, i32* %p2) {
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entry:
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br label %loop
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loop:
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%iv = phi i32 [ 0, %entry ], [ %inc, %loop ]
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%gep = getelementptr inbounds i32, i32* %p, i32 %iv
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%load = load i32, i32* %gep
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%gep2 = getelementptr inbounds i32, i32* %p2, i32 %iv
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%load2 = load i32, i32* %gep2
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%inc = add i32 %iv, 1
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%exitcnd = icmp uge i32 %inc, 1024
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br i1 %exitcnd, label %exit, label %loop
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exit:
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ret void
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}
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; Check that outer loop strided load isn't marked.
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; CHECK-LABEL: @hwpf2(
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; CHECK: load i32, i32* %gep, !falkor.strided.access !0
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; CHECK: load i32, i32* %gep2{{$}}
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; NOHWPF-LABEL: @hwpf2(
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; NOHWPF: load i32, i32* %gep{{$}}
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; NOHWPF: load i32, i32* %gep2{{$}}
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define void @hwpf2(i32* %p) {
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entry:
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br label %loop1
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loop1:
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%iv1 = phi i32 [ 0, %entry ], [ %inc1, %loop1.latch ]
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%outer.sum = phi i32 [ 0, %entry ], [ %sum, %loop1.latch ]
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br label %loop2.header
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loop2.header:
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br label %loop2
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loop2:
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%iv2 = phi i32 [ 0, %loop2.header ], [ %inc2, %loop2 ]
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%sum = phi i32 [ %outer.sum, %loop2.header ], [ %sum.inc, %loop2 ]
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%gep = getelementptr inbounds i32, i32* %p, i32 %iv2
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%load = load i32, i32* %gep
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%sum.inc = add i32 %sum, %load
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%inc2 = add i32 %iv2, 1
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%exitcnd2 = icmp uge i32 %inc2, 1024
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br i1 %exitcnd2, label %exit2, label %loop2
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exit2:
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%gep2 = getelementptr inbounds i32, i32* %p, i32 %iv1
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%load2 = load i32, i32* %gep2
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br label %loop1.latch
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loop1.latch:
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%inc1 = add i32 %iv1, 1
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%exitcnd1 = icmp uge i32 %inc1, 1024
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br i1 %exitcnd2, label %exit, label %loop1
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exit:
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ret void
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}
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; Check that non-strided load isn't marked.
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; CHECK-LABEL: @hwpf3(
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; CHECK: load i32, i32* %gep, !falkor.strided.access !0
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; CHECK: load i32, i32* %gep2{{$}}
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; NOHWPF-LABEL: @hwpf3(
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; NOHWPF: load i32, i32* %gep{{$}}
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; NOHWPF: load i32, i32* %gep2{{$}}
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define void @hwpf3(i32* %p, i32* %p2) {
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entry:
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br label %loop
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loop:
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%iv = phi i32 [ 0, %entry ], [ %inc, %loop ]
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%gep = getelementptr inbounds i32, i32* %p, i32 %iv
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%load = load i32, i32* %gep
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%gep2 = getelementptr inbounds i32, i32* %p2, i32 %load
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%load2 = load i32, i32* %gep2
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%inc = add i32 %iv, 1
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%exitcnd = icmp uge i32 %inc, 1024
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br i1 %exitcnd, label %exit, label %loop
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exit:
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ret void
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}
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