diff options
| author | Krzysztof Parzyszek <kparzysz@codeaurora.org> | 2016-07-22 14:22:43 +0000 |
|---|---|---|
| committer | Krzysztof Parzyszek <kparzysz@codeaurora.org> | 2016-07-22 14:22:43 +0000 |
| commit | d3d0a4bda36133bdf233c75dfd9e32d5d7cff3ac (patch) | |
| tree | 72d5c7d5a3b78783ac94bc0e885e1d327d4a7058 /llvm/test/CodeGen | |
| parent | db10b5009d8c192168b3acdaa5b3ed9382809aad (diff) | |
| download | bcm5719-llvm-d3d0a4bda36133bdf233c75dfd9e32d5d7cff3ac.tar.gz bcm5719-llvm-d3d0a4bda36133bdf233c75dfd9e32d5d7cff3ac.zip | |
[Hexagon] Use loop data prefetch on Hexagon
llvm-svn: 276422
Diffstat (limited to 'llvm/test/CodeGen')
| -rw-r--r-- | llvm/test/CodeGen/Hexagon/loop-prefetch.ll | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/Hexagon/loop-prefetch.ll b/llvm/test/CodeGen/Hexagon/loop-prefetch.ll new file mode 100644 index 00000000000..0c6e4581a71 --- /dev/null +++ b/llvm/test/CodeGen/Hexagon/loop-prefetch.ll @@ -0,0 +1,27 @@ +; RUN: llc -march=hexagon -hexagon-loop-prefetch < %s | FileCheck %s +; CHECK: dcfetch + +target triple = "hexagon" + +define void @copy(i32* nocapture %d, i32* nocapture readonly %s, i32 %n) local_unnamed_addr #0 { +entry: + %tobool2 = icmp eq i32 %n, 0 + br i1 %tobool2, label %while.end, label %while.body + +while.body: ; preds = %entry, %while.body + %n.addr.05 = phi i32 [ %dec, %while.body ], [ %n, %entry ] + %s.addr.04 = phi i32* [ %incdec.ptr, %while.body ], [ %s, %entry ] + %d.addr.03 = phi i32* [ %incdec.ptr1, %while.body ], [ %d, %entry ] + %dec = add i32 %n.addr.05, -1 + %incdec.ptr = getelementptr inbounds i32, i32* %s.addr.04, i32 1 + %0 = load i32, i32* %s.addr.04, align 4 + %incdec.ptr1 = getelementptr inbounds i32, i32* %d.addr.03, i32 1 + store i32 %0, i32* %d.addr.03, align 4 + %tobool = icmp eq i32 %dec, 0 + br i1 %tobool, label %while.end, label %while.body + +while.end: ; preds = %while.body, %entry + ret void +} + +attributes #0 = { norecurse nounwind "target-cpu"="hexagonv60" "target-features"="-hvx,-hvx-double" } |
