[llvm-exegesis] Fix failing assert when creating Snippet for LAHF.
Reviewers: courbet
Subscribers: tschuett, llvm-commits
Differential Revision: https://reviews.llvm.org/D48123
llvm-svn: 334599
diff --git a/llvm/unittests/tools/llvm-exegesis/X86/SnippetGeneratorTest.cpp b/llvm/unittests/tools/llvm-exegesis/X86/SnippetGeneratorTest.cpp
index 0e4a3fb..d020d4c 100644
--- a/llvm/unittests/tools/llvm-exegesis/X86/SnippetGeneratorTest.cpp
+++ b/llvm/unittests/tools/llvm-exegesis/X86/SnippetGeneratorTest.cpp
@@ -103,11 +103,22 @@
const unsigned Opcode = llvm::X86::CMP64rr;
auto Conf = checkAndGetConfiguration(Opcode);
- EXPECT_THAT(Conf.Info, testing::HasSubstr("cycle through CMOVLE16rr"));
+ EXPECT_THAT(Conf.Info, testing::HasSubstr("cycle through"));
ASSERT_THAT(Conf.Snippet, testing::SizeIs(2));
+ const llvm::MCInst Instr = Conf.Snippet[0];
+ EXPECT_THAT(Instr.getOpcode(), Opcode);
// TODO: check that the two instructions alias each other.
}
+TEST_F(LatencySnippetGeneratorTest, LAHF) {
+ const unsigned Opcode = llvm::X86::LAHF;
+ auto Conf = checkAndGetConfiguration(Opcode);
+ EXPECT_THAT(Conf.Info, testing::HasSubstr("cycle through"));
+ ASSERT_THAT(Conf.Snippet, testing::SizeIs(2));
+ const llvm::MCInst Instr = Conf.Snippet[0];
+ EXPECT_THAT(Instr.getOpcode(), Opcode);
+}
+
class UopsSnippetGeneratorTest : public X86SnippetGeneratorTest {
protected:
UopsSnippetGeneratorTest() : Runner(State) {}