RPCS3/llvm-mirror
1
0
Fork 0
mirror of https://github.com/RPCS3/llvm-mirror.git synced 2024-10-19 11:02:59 +02:00
Code Issues Projects Releases Wiki Activity

GlobalISel: Add buildXor/buildNot

Browse Source 
llvm-svn: 360880
This commit is contained in:
Matt Arsenault 2019-05-16 12:23:04 +00:00
parent de8e2a4b00
commit 13e2bca05f
2 changed files with 42 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
include/llvm/CodeGen/GlobalISel/MachineIRBuilder.h
View File

@ -1242,6 +1242,20 @@ public:
return buildInstr(TargetOpcode::G_OR, {Dst}, {Src0, Src1});
}
/// Build and insert \p Res = G_XOR \p Op0, \p Op1
MachineInstrBuilder buildXor(const DstOp &Dst, const SrcOp &Src0,
const SrcOp &Src1) {
return buildInstr(TargetOpcode::G_XOR, {Dst}, {Src0, Src1});
}
/// Build and insert a bitwise not,
/// \p NegOne = G_CONSTANT -1
/// \p Res = G_OR \p Op0, NegOne
MachineInstrBuilder buildNot(const DstOp &Dst, const SrcOp &Src0) {
auto NegOne = buildConstant(Dst.getLLTTy(*getMRI()), -1);
return buildInstr(TargetOpcode::G_XOR, {Dst}, {Src0, NegOne});
}
/// Build and insert \p Res = G_FADD \p Op0, \p Op1
MachineInstrBuilder buildFAdd(const DstOp &Dst, const SrcOp &Src0,
const SrcOp &Src1) {

28
unittests/CodeGen/GlobalISel/MachineIRBuilderTest.cpp
View File

@ -171,3 +171,31 @@ TEST_F(GISelMITest, BuildIntrinsic) {
EXPECT_TRUE(CheckMachineFunction(*MF, CheckStr)) << *MF;
}
TEST_F(GISelMITest, BuildXor) {
if (!TM)
return;
LLT S64 = LLT::scalar(64);
LLT S128 = LLT::scalar(128);
SmallVector<unsigned, 4> Copies;
collectCopies(Copies, MF);
B.buildXor(S64, Copies[0], Copies[1]);
B.buildNot(S64, Copies[0]);
// Make sure this works with > 64-bit types
auto Merge = B.buildMerge(S128, {Copies[0], Copies[1]});
B.buildNot(S128, Merge);
auto CheckStr = R"(
; CHECK: [[COPY0:%[0-9]+]]:_(s64) = COPY $x0
; CHECK: [[COPY1:%[0-9]+]]:_(s64) = COPY $x1
; CHECK: [[XOR0:%[0-9]+]]:_(s64) = G_XOR [[COPY0]]:_, [[COPY1]]:_
; CHECK: [[NEGONE64:%[0-9]+]]:_(s64) = G_CONSTANT i64 -1
; CHECK: [[XOR1:%[0-9]+]]:_(s64) = G_XOR [[COPY0]]:_, [[NEGONE64]]:_
; CHECK: [[MERGE:%[0-9]+]]:_(s128) = G_MERGE_VALUES [[COPY0]]:_(s64), [[COPY1]]:_(s64)
; CHECK: [[NEGONE128:%[0-9]+]]:_(s128) = G_CONSTANT i128 -1
; CHECK: [[XOR2:%[0-9]+]]:_(s128) = G_XOR [[MERGE]]:_, [[NEGONE128]]:_
)";
EXPECT_TRUE(CheckMachineFunction(*MF, CheckStr)) << *MF;
}