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https://github.com/c64scene-ar/llvm-6502.git
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ff49ef7838
This pass had the same problem as the data-prefetching pass: it was only checking for depth == 1 loops in practice. Fix that, add some debugging statements, and make sure that, when we grab an AddRec, it is for the loop we expect. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@234670 91177308-0d34-0410-b5e6-96231b3b80d8
53 lines
1.7 KiB
LLVM
53 lines
1.7 KiB
LLVM
; RUN: llc < %s | FileCheck %s
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target datalayout = "E-m:e-i64:64-n32:64"
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target triple = "powerpc64-unknown-linux-gnu"
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; Function Attrs: nounwind
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define void @foo(double* %x, double* nocapture readonly %y) #0 {
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entry:
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br label %for.cond1.preheader
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for.cond1.preheader: ; preds = %for.end, %entry
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%i.015 = phi i32 [ 0, %entry ], [ %inc7, %for.end ]
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br label %for.body3
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for.body3: ; preds = %for.body3, %for.cond1.preheader
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%indvars.iv = phi i64 [ 0, %for.cond1.preheader ], [ %indvars.iv.next, %for.body3 ]
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%arrayidx = getelementptr inbounds double, double* %y, i64 %indvars.iv
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%0 = load double, double* %arrayidx, align 8
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%add = fadd double %0, 1.000000e+00
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%arrayidx5 = getelementptr inbounds double, double* %x, i64 %indvars.iv
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store double %add, double* %arrayidx5, align 8
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%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
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%exitcond = icmp eq i64 %indvars.iv.next, 16000
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br i1 %exitcond, label %for.end, label %for.body3
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for.end: ; preds = %for.body3
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tail call void @bar(double* %x) #2
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%inc7 = add nuw nsw i32 %i.015, 1
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%exitcond16 = icmp eq i32 %inc7, 1000
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br i1 %exitcond16, label %for.end8, label %for.cond1.preheader
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for.end8: ; preds = %for.end
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ret void
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; CHECK-LABEL: @foo
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; CHECK: lfdu [[REG1:[0-9]+]], 8({{[0-9]+}})
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; CHECK: fadd [[REG2:[0-9]+]], [[REG1]], {{[0-9]+}}
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; CHECK: stfdu [[REG2]], 8({{[0-9]+}})
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; CHECK: bdnz
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; CHECK: bl bar
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; CHECK-NEXT: nop
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; CHECK: blr
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}
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declare void @bar(double*) #1
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attributes #0 = { nounwind "target-cpu"="a2" }
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attributes #1 = { "target-cpu"="a2" }
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attributes #2 = { nounwind }
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