From 7f8ea15ffa193e0c5b8d0b20df335754ef038bcc Mon Sep 17 00:00:00 2001 From: Matt Arsenault Date: Fri, 17 May 2019 11:49:35 +0000 Subject: GlobalISel: Add MIRBuilder wrappers for bitcount instructions Various expansions use these. llvm-svn: 361018 --- .../CodeGen/GlobalISel/MachineIRBuilderTest.cpp | 27 ++++++++++++++++++++++ 1 file changed, 27 insertions(+) (limited to 'llvm/unittests/CodeGen/GlobalISel') diff --git a/llvm/unittests/CodeGen/GlobalISel/MachineIRBuilderTest.cpp b/llvm/unittests/CodeGen/GlobalISel/MachineIRBuilderTest.cpp index aec6d46b3c0..c696620958d 100644 --- a/llvm/unittests/CodeGen/GlobalISel/MachineIRBuilderTest.cpp +++ b/llvm/unittests/CodeGen/GlobalISel/MachineIRBuilderTest.cpp @@ -202,3 +202,30 @@ TEST_F(GISelMITest, BuildXor) { EXPECT_TRUE(CheckMachineFunction(*MF, CheckStr)) << *MF; } + +TEST_F(GISelMITest, BuildBitCounts) { + if (!TM) + return; + + LLT S32 = LLT::scalar(32); + SmallVector Copies; + collectCopies(Copies, MF); + + B.buildCTPOP(S32, Copies[0]); + B.buildCTLZ(S32, Copies[0]); + B.buildCTLZ_ZERO_UNDEF(S32, Copies[1]); + B.buildCTTZ(S32, Copies[0]); + B.buildCTTZ_ZERO_UNDEF(S32, Copies[1]); + + auto CheckStr = R"( + ; CHECK: [[COPY0:%[0-9]+]]:_(s64) = COPY $x0 + ; CHECK: [[COPY1:%[0-9]+]]:_(s64) = COPY $x1 + ; CHECK: [[CTPOP:%[0-9]+]]:_(s32) = G_CTPOP [[COPY0]]:_ + ; CHECK: [[CTLZ0:%[0-9]+]]:_(s32) = G_CTLZ [[COPY0]]:_ + ; CHECK: [[CTLZ_UNDEF0:%[0-9]+]]:_(s32) = G_CTLZ_ZERO_UNDEF [[COPY1]]:_ + ; CHECK: [[CTTZ:%[0-9]+]]:_(s32) = G_CTTZ [[COPY0]]:_ + ; CHECK: [[CTTZ_UNDEF0:%[0-9]+]]:_(s32) = G_CTTZ_ZERO_UNDEF [[COPY1]]:_ + )"; + + EXPECT_TRUE(CheckMachineFunction(*MF, CheckStr)) << *MF; +} -- cgit v1.2.3