llvm-project/llvm/test/CodeGen/PowerPC/loop-data-prefetch.ll

30 lines
984 B
LLVM

; RUN: llc -mcpu=a2 < %s | FileCheck %s
target datalayout = "E-m:e-i64:64-n32:64"
target triple = "powerpc64-bgq-linux"
; Function Attrs: nounwind
define void @foo(double* nocapture %a, double* nocapture readonly %b) #0 {
entry:
br label %for.body
for.body: ; preds = %for.body, %entry
%indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
%arrayidx = getelementptr inbounds double, double* %b, i64 %indvars.iv
%0 = load double, double* %arrayidx, align 8
%add = fadd double %0, 1.000000e+00
%arrayidx2 = getelementptr inbounds double, double* %a, i64 %indvars.iv
store double %add, double* %arrayidx2, align 8
%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
%exitcond = icmp eq i64 %indvars.iv.next, 1600
br i1 %exitcond, label %for.end, label %for.body
for.end: ; preds = %for.body
ret void
; CHECK-LABEL: @foo
; CHECK: dcbt
}
attributes #0 = { nounwind }