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6c9712fecb
Schedule more conservatively to account for stalls on floating point resources and latency. Use the AGU resource to model latency stalls since it's shared between FP and LD/ST instructions. This might not be completely accurate but should work well in practice. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@198125 91177308-0d34-0410-b5e6-96231b3b80d8
136 lines
4.4 KiB
LLVM
136 lines
4.4 KiB
LLVM
; RUN: llc < %s -march=arm -mtriple=thumbv7-apple-ios7.0.0 -float-abi=hard -mcpu=cortex-a9 -misched-postra -misched-bench -scheditins=false | FileCheck %s
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;
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; Test MI-Sched suppory latency based stalls on in in-order pipeline
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; using the new machine model.
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target datalayout = "e-p:32:32:32-i1:8:32-i8:8:32-i16:16:32-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:32:64-v128:32:128-a0:0:32-n32-S32"
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; Don't be too strict with the top of the schedule, but most of it
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; should be nicely pipelined.
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;
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; CHECK: saxpy10:
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; CHECK: vldr
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; CHECK: vldr
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; CHECK: vldr
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; CHECK: vldr
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; CHECK: vldr
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; CHECK: vldr
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; CHECK-NEXT: vadd
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; CHECK-NEXT: vadd
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; CHECK-NEXT: vldr
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; CHECK-NEXT: vldr
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; CHECK-NEXT: vldr
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; CHECK-NEXT: vadd
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; CHECK-NEXT: vmul
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; CHECK-NEXT: vldr
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; CHECK-NEXT: vadd
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; CHECK-NEXT: vadd
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; CHECK-NEXT: vmul
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; CHECK-NEXT: vldr
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; CHECK-NEXT: vadd
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; CHECK-NEXT: vadd
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; CHECK-NEXT: vldr
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; CHECK-NEXT: vmul
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; CHECK-NEXT: vadd
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; CHECK-NEXT: vldr
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; CHECK-NEXT: vadd
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; CHECK-NEXT: vldr
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; CHECK-NEXT: vmul
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; CHECK-NEXT: vadd
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; CHECK-NEXT: vldr
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; CHECK-NEXT: vadd
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; CHECK-NEXT: vldr
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; CHECK-NEXT: vmul
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; CHECK-NEXT: vadd
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; CHECK-NEXT: vldr
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; CHECK-NEXT: vadd
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; CHECK-NEXT: vldr
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; CHECK-NEXT: vmul
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; CHECK-NEXT: vadd
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; CHECK-NEXT: vldr
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; CHECK-NEXT: vmul
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; CHECK-NEXT: vadd
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; CHECK-NEXT: vldr
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; CHECK-NEXT: vmul
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; CHECK-NEXT: vadd
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; CHECK-NEXT: vldr
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; CHECK-NEXT: vadd
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; CHECK-NEXT: vadd
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; CHECK-NEXT: vadd
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; CHECK-NEXT: vmov
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; CHECK-NEXT: bx
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;
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; This accumulates a sum rather than storing each result.
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define float @saxpy10(float* nocapture readonly %data1, float* nocapture readonly %data2, float %a) {
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entry:
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%0 = load float* %data1, align 4
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%mul = fmul float %0, %a
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%1 = load float* %data2, align 4
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%add = fadd float %mul, %1
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%add2 = fadd float %add, 0.000000e+00
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%arrayidx.1 = getelementptr inbounds float* %data1, i32 1
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%2 = load float* %arrayidx.1, align 4
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%mul.1 = fmul float %2, %a
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%arrayidx1.1 = getelementptr inbounds float* %data2, i32 1
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%3 = load float* %arrayidx1.1, align 4
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%add.1 = fadd float %mul.1, %3
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%add2.1 = fadd float %add2, %add.1
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%arrayidx.2 = getelementptr inbounds float* %data1, i32 2
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%4 = load float* %arrayidx.2, align 4
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%mul.2 = fmul float %4, %a
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%arrayidx1.2 = getelementptr inbounds float* %data2, i32 2
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%5 = load float* %arrayidx1.2, align 4
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%add.2 = fadd float %mul.2, %5
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%add2.2 = fadd float %add2.1, %add.2
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%arrayidx.3 = getelementptr inbounds float* %data1, i32 3
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%6 = load float* %arrayidx.3, align 4
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%mul.3 = fmul float %6, %a
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%arrayidx1.3 = getelementptr inbounds float* %data2, i32 3
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%7 = load float* %arrayidx1.3, align 4
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%add.3 = fadd float %mul.3, %7
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%add2.3 = fadd float %add2.2, %add.3
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%arrayidx.4 = getelementptr inbounds float* %data1, i32 4
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%8 = load float* %arrayidx.4, align 4
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%mul.4 = fmul float %8, %a
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%arrayidx1.4 = getelementptr inbounds float* %data2, i32 4
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%9 = load float* %arrayidx1.4, align 4
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%add.4 = fadd float %mul.4, %9
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%add2.4 = fadd float %add2.3, %add.4
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%arrayidx.5 = getelementptr inbounds float* %data1, i32 5
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%10 = load float* %arrayidx.5, align 4
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%mul.5 = fmul float %10, %a
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%arrayidx1.5 = getelementptr inbounds float* %data2, i32 5
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%11 = load float* %arrayidx1.5, align 4
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%add.5 = fadd float %mul.5, %11
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%add2.5 = fadd float %add2.4, %add.5
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%arrayidx.6 = getelementptr inbounds float* %data1, i32 6
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%12 = load float* %arrayidx.6, align 4
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%mul.6 = fmul float %12, %a
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%arrayidx1.6 = getelementptr inbounds float* %data2, i32 6
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%13 = load float* %arrayidx1.6, align 4
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%add.6 = fadd float %mul.6, %13
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%add2.6 = fadd float %add2.5, %add.6
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%arrayidx.7 = getelementptr inbounds float* %data1, i32 7
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%14 = load float* %arrayidx.7, align 4
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%mul.7 = fmul float %14, %a
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%arrayidx1.7 = getelementptr inbounds float* %data2, i32 7
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%15 = load float* %arrayidx1.7, align 4
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%add.7 = fadd float %mul.7, %15
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%add2.7 = fadd float %add2.6, %add.7
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%arrayidx.8 = getelementptr inbounds float* %data1, i32 8
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%16 = load float* %arrayidx.8, align 4
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%mul.8 = fmul float %16, %a
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%arrayidx1.8 = getelementptr inbounds float* %data2, i32 8
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%17 = load float* %arrayidx1.8, align 4
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%add.8 = fadd float %mul.8, %17
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%add2.8 = fadd float %add2.7, %add.8
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%arrayidx.9 = getelementptr inbounds float* %data1, i32 9
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%18 = load float* %arrayidx.9, align 4
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%mul.9 = fmul float %18, %a
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%arrayidx1.9 = getelementptr inbounds float* %data2, i32 9
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%19 = load float* %arrayidx1.9, align 4
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%add.9 = fadd float %mul.9, %19
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%add2.9 = fadd float %add2.8, %add.9
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ret float %add2.9
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}
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