50 lines
2.4 KiB
LLVM
50 lines
2.4 KiB
LLVM
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; RUN: llc < %s -mtriple=powerpc64-unknown-linux-gnu -mcpu=pwr7 -enable-ppc-prefetching=true | FileCheck %s
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; RUN: llc < %s -mtriple=powerpc64-unknown-linux-gnu -mcpu=pwr7 -enable-ppc-prefetching=true -ppc-loop-prefetch-cache-line=64 | FileCheck %s -check-prefix=CHECK-DCBT
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; RUN: llc < %s -mtriple=powerpc64le-unknown-linux-gnu -mcpu=pwr8 -enable-ppc-prefetching=true | FileCheck %s
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; RUN: llc < %s -mtriple=powerpc64le-unknown-linux-gnu -mcpu=pwr8 -enable-ppc-prefetching=true -ppc-loop-prefetch-cache-line=64 | FileCheck %s -check-prefix=CHECK-DCBT
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; RUN: llc < %s -mtriple=powerpc64le-unknown-linux-gnu -mcpu=pwr9 -enable-ppc-prefetching=true | FileCheck %s
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; RUN: llc < %s -mtriple=powerpc64le-unknown-linux-gnu -mcpu=pwr9 -enable-ppc-prefetching=true -ppc-loop-prefetch-cache-line=64 | FileCheck %s -check-prefix=CHECK-DCBT
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; RUN: llc < %s -mtriple=ppc64-- -mcpu=a2 -enable-ppc-prefetching=true | FileCheck %s -check-prefix=CHECK-DCBT
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; Function Attrs: nounwind
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define signext i32 @check_cache_line() local_unnamed_addr {
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entry:
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%call = tail call i32* bitcast (i32* (...)* @magici to i32* ()*)()
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%call115 = tail call signext i32 bitcast (i32 (...)* @iter to i32 ()*)()
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%cmp16 = icmp sgt i32 %call115, 0
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br i1 %cmp16, label %for.body, label %for.cond.cleanup
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for.cond.cleanup: ; preds = %for.body, %entry
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%res.0.lcssa = phi i32 [ 0, %entry ], [ %add5, %for.body ]
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ret i32 %res.0.lcssa
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for.body: ; preds = %entry, %for.body
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%indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ 0, %entry ]
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%res.017 = phi i32 [ %add5, %for.body ], [ 0, %entry ]
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%arrayidx = getelementptr inbounds i32, i32* %call, i64 %indvars.iv
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%0 = load i32, i32* %arrayidx, align 4
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%add = add nsw i32 %0, %res.017
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%1 = add nuw nsw i64 %indvars.iv, 16
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%arrayidx4 = getelementptr inbounds i32, i32* %call, i64 %1
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%2 = load i32, i32* %arrayidx4, align 4
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%add5 = add nsw i32 %add, %2
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%indvars.iv.next = add nuw i64 %indvars.iv, 1
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%call1 = tail call signext i32 bitcast (i32 (...)* @iter to i32 ()*)()
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%3 = sext i32 %call1 to i64
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%cmp = icmp slt i64 %indvars.iv.next, %3
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br i1 %cmp, label %for.body, label %for.cond.cleanup
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; CHECK-LABEL: check_cache_line
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; CHECK: dcbt
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; CHECK-NOT: dcbt
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; CHECK: blr
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; CHECK-DCBT-LABEL: check_cache_line
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; CHECK-DCBT: dcbt
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; CHECK-DCBT: dcbt
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; CHECK-DCBT: blr
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}
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declare i32* @magici(...) local_unnamed_addr
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declare signext i32 @iter(...) local_unnamed_addr
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