[GISel]: Add pattern matchers for G_BITCAST/PTRTOINT/INTTOPTR
Adds pattern matchers for the above along with unit tests for the same.
https://reviews.llvm.org/D43479
llvm-svn: 325542
diff --git a/llvm/unittests/CodeGen/GlobalISel/PatternMatchTest.cpp b/llvm/unittests/CodeGen/GlobalISel/PatternMatchTest.cpp
index d01a129..b428101 100644
--- a/llvm/unittests/CodeGen/GlobalISel/PatternMatchTest.cpp
+++ b/llvm/unittests/CodeGen/GlobalISel/PatternMatchTest.cpp
@@ -314,9 +314,23 @@
LLT v2s32 = LLT::vector(2, 32);
auto MIBCast = B.buildCast(v2s32, Copies[0]);
ASSERT_TRUE(
+ mi_match(MIBCast->getOperand(0).getReg(), MRI, m_GBitcast(m_Reg())));
+ ASSERT_TRUE(
mi_match(MIBCast->getOperand(0).getReg(), MRI, m_SpecificType(v2s32)));
ASSERT_TRUE(
mi_match(MIBCast->getOperand(1).getReg(), MRI, m_SpecificType(s64)));
+
+ // Build a PTRToInt and INTTOPTR and match and test them.
+ LLT PtrTy = LLT::pointer(0, 64);
+ auto MIBIntToPtr = B.buildCast(PtrTy, Copies[0]);
+ auto MIBPtrToInt = B.buildCast(s64, MIBIntToPtr);
+ unsigned Src0;
+
+ // match the ptrtoint(inttoptr reg)
+ bool match = mi_match(MIBPtrToInt->getOperand(0).getReg(), MRI,
+ m_GPtrToInt(m_GIntToPtr(m_Reg(Src0))));
+ ASSERT_TRUE(match);
+ ASSERT_EQ(Src0, Copies[0]);
}
TEST(PatternMatchInstr, MatchCombinators) {