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authorDavid L. Jones <dlj@google.com>2017-11-15 01:40:05 +0000
committerDavid L. Jones <dlj@google.com>2017-11-15 01:40:05 +0000
commitd5c2cca72463233df77a065f201db31b140eb44d (patch)
tree3f9a978131033302a58b7db7db1ecf2a4622bad2 /lib/Target/AMDGPU/AMDGPUISelDAGToDAG.cpp
parentce7676b8db6bac096dad4c4ad62e9e6bb8aa1064 (diff)
parentdcf64df89bc6d775e266ebd6b0134d135f47a35b (diff)
downloadllvm-testing.tar.gz
Creating branches/google/testing and tags/google/testing/2017-11-14 from r317716testing
git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/google/testing@318248 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/AMDGPU/AMDGPUISelDAGToDAG.cpp')
-rw-r--r--lib/Target/AMDGPU/AMDGPUISelDAGToDAG.cpp19
1 files changed, 19 insertions, 0 deletions
diff --git a/lib/Target/AMDGPU/AMDGPUISelDAGToDAG.cpp b/lib/Target/AMDGPU/AMDGPUISelDAGToDAG.cpp
index c313e4a04ef8..f04efd71fa05 100644
--- a/lib/Target/AMDGPU/AMDGPUISelDAGToDAG.cpp
+++ b/lib/Target/AMDGPU/AMDGPUISelDAGToDAG.cpp
@@ -204,6 +204,7 @@ private:
void SelectADD_SUB_I64(SDNode *N);
void SelectUADDO_USUBO(SDNode *N);
void SelectDIV_SCALE(SDNode *N);
+ void SelectMAD_64_32(SDNode *N);
void SelectFMA_W_CHAIN(SDNode *N);
void SelectFMUL_W_CHAIN(SDNode *N);
@@ -594,6 +595,11 @@ void AMDGPUDAGToDAGISel::Select(SDNode *N) {
SelectDIV_SCALE(N);
return;
}
+ case AMDGPUISD::MAD_I64_I32:
+ case AMDGPUISD::MAD_U64_U32: {
+ SelectMAD_64_32(N);
+ return;
+ }
case ISD::CopyToReg: {
const SITargetLowering& Lowering =
*static_cast<const SITargetLowering*>(getTargetLowering());
@@ -814,6 +820,19 @@ void AMDGPUDAGToDAGISel::SelectDIV_SCALE(SDNode *N) {
CurDAG->SelectNodeTo(N, Opc, N->getVTList(), Ops);
}
+// We need to handle this here because tablegen doesn't support matching
+// instructions with multiple outputs.
+void AMDGPUDAGToDAGISel::SelectMAD_64_32(SDNode *N) {
+ SDLoc SL(N);
+ bool Signed = N->getOpcode() == AMDGPUISD::MAD_I64_I32;
+ unsigned Opc = Signed ? AMDGPU::V_MAD_I64_I32 : AMDGPU::V_MAD_U64_U32;
+
+ SDValue Clamp = CurDAG->getTargetConstant(0, SL, MVT::i1);
+ SDValue Ops[] = { N->getOperand(0), N->getOperand(1), N->getOperand(2),
+ Clamp };
+ CurDAG->SelectNodeTo(N, Opc, N->getVTList(), Ops);
+}
+
bool AMDGPUDAGToDAGISel::isDSOffsetLegal(const SDValue &Base, unsigned Offset,
unsigned OffsetBits) const {
if ((OffsetBits == 16 && !isUInt<16>(Offset)) ||