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| author | Hal Finkel <hfinkel@anl.gov> | 2012-04-01 20:08:17 +0000 |
|---|---|---|
| committer | Hal Finkel <hfinkel@anl.gov> | 2012-04-01 20:08:17 +0000 |
| commit | 322e41a9144493600bf4474132a36f015231379f (patch) | |
| tree | 9df87e0baf65e1ec3fd487965d0a025181dd4de3 | |
| parent | 9032344c15248ff5ae4da0f01a7878498e267ba4 (diff) | |
| download | bcm5719-llvm-322e41a9144493600bf4474132a36f015231379f.tar.gz bcm5719-llvm-322e41a9144493600bf4474132a36f015231379f.zip | |
Enable prefetch generation on PPC64.
llvm-svn: 153851
| -rw-r--r-- | llvm/lib/Target/PowerPC/PPCISelLowering.cpp | 3 | ||||
| -rw-r--r-- | llvm/lib/Target/PowerPC/PPCInstrInfo.td | 3 | ||||
| -rw-r--r-- | llvm/test/CodeGen/PowerPC/ppc64-prefetch.ll | 15 |
3 files changed, 21 insertions, 0 deletions
diff --git a/llvm/lib/Target/PowerPC/PPCISelLowering.cpp b/llvm/lib/Target/PowerPC/PPCISelLowering.cpp index 00f2dcc8dbf..96b7074aa02 100644 --- a/llvm/lib/Target/PowerPC/PPCISelLowering.cpp +++ b/llvm/lib/Target/PowerPC/PPCISelLowering.cpp @@ -389,6 +389,9 @@ PPCTargetLowering::PPCTargetLowering(PPCTargetMachine &TM) setOperationAction(ISD::BUILD_VECTOR, MVT::v4f32, Custom); } + if (TM.getSubtarget<PPCSubtarget>().has64BitSupport()) + setOperationAction(ISD::PREFETCH, MVT::Other, Legal); + setOperationAction(ISD::ATOMIC_LOAD, MVT::i32, Expand); setOperationAction(ISD::ATOMIC_STORE, MVT::i32, Expand); diff --git a/llvm/lib/Target/PowerPC/PPCInstrInfo.td b/llvm/lib/Target/PowerPC/PPCInstrInfo.td index 3a6dbcaab37..748486c1ca2 100644 --- a/llvm/lib/Target/PowerPC/PPCInstrInfo.td +++ b/llvm/lib/Target/PowerPC/PPCInstrInfo.td @@ -545,6 +545,9 @@ def DCBZL : DCB_Form<1014, 1, (outs), (ins memrr:$dst), "dcbzl $dst", LdStDCBF, [(int_ppc_dcbzl xoaddr:$dst)]>, PPC970_DGroup_Single; +def : Pat<(prefetch xoaddr:$dst, (i32 0), imm, (i32 1)), + (DCBT xoaddr:$dst)>; + // Atomic operations let usesCustomInserter = 1 in { let Defs = [CR0] in { diff --git a/llvm/test/CodeGen/PowerPC/ppc64-prefetch.ll b/llvm/test/CodeGen/PowerPC/ppc64-prefetch.ll new file mode 100644 index 00000000000..b2f37097f92 --- /dev/null +++ b/llvm/test/CodeGen/PowerPC/ppc64-prefetch.ll @@ -0,0 +1,15 @@ +target datalayout = "E-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v128:128:128-n32:64" +target triple = "powerpc64-unknown-linux-gnu" +; RUN: llc < %s | FileCheck %s + +define void @test1(i8* %a, ...) nounwind { +entry: + call void @llvm.prefetch(i8* %a, i32 0, i32 3, i32 1) + ret void +} + +declare void @llvm.prefetch(i8*, i32, i32, i32) + +; CHECK: @test1 +; CHECK: dcbt + |
