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[MIPatternMatch] Add matcher for G_PTR_ADD 

Add a matcher which recognizes G_PTR_ADD and add a test.

Differential Revision: https://reviews.llvm.org/D94348
This commit is contained in:
Jessica Paquette 2021-01-08 15:06:13 -08:00
parent 175288a1af
commit ddcb0aae8b
2 changed files with 14 additions and 0 deletions
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6
llvm/include/llvm/CodeGen/GlobalISel/MIPatternMatch.h
View File

@ -220,6 +220,12 @@ m_GAdd(const LHS &L, const RHS &R) {
return BinaryOp_match<LHS, RHS, TargetOpcode::G_ADD, true>(L, R);
}
template <typename LHS, typename RHS>
inline BinaryOp_match<LHS, RHS, TargetOpcode::G_PTR_ADD, true>
m_GPtrAdd(const LHS &L, const RHS &R) {
return BinaryOp_match<LHS, RHS, TargetOpcode::G_PTR_ADD, true>(L, R);
}
template <typename LHS, typename RHS>
inline BinaryOp_match<LHS, RHS, TargetOpcode::G_SUB> m_GSub(const LHS &L,
const RHS &R) {

8
llvm/unittests/CodeGen/GlobalISel/PatternMatchTest.cpp
View File

@ -47,6 +47,7 @@ TEST_F(AArch64GISelMITest, MatchBinaryOp) {
return;
LLT s32 = LLT::scalar(32);
LLT s64 = LLT::scalar(64);
LLT p0 = LLT::pointer(0, 64);
auto MIBAdd = B.buildAdd(s64, Copies[0], Copies[1]);
// Test case for no bind.
bool match =
@ -145,6 +146,13 @@ TEST_F(AArch64GISelMITest, MatchBinaryOp) {
EXPECT_TRUE(match);
EXPECT_EQ(Src0, Copies[0]);
EXPECT_EQ(Src1, TruncCopy1.getReg(0));
// Build a G_PTR_ADD and check that we can match it.
auto PtrAdd = B.buildPtrAdd(p0, {B.buildUndef(p0)}, Copies[0]);
match = mi_match(PtrAdd.getReg(0), *MRI, m_GPtrAdd(m_Reg(Src0), m_Reg(Src1)));
EXPECT_TRUE(match);
EXPECT_EQ(Src0, PtrAdd->getOperand(1).getReg());
EXPECT_EQ(Src1, Copies[0]);
}
TEST_F(AArch64GISelMITest, MatchICmp) {