[llvm-exegesis] Add mechanism to add target-specific passes.
Summary:
createX86FloatingPointStackifierPass is disabled until we handle
TracksLiveness correctly.
Reviewers: gchatelet
Subscribers: mgorny, tschuett, llvm-commits
Differential Revision: https://reviews.llvm.org/D48360
llvm-svn: 335117
diff --git a/llvm/tools/llvm-exegesis/lib/X86/Target.cpp b/llvm/tools/llvm-exegesis/lib/X86/Target.cpp
index a37387b..557588b 100644
--- a/llvm/tools/llvm-exegesis/lib/X86/Target.cpp
+++ b/llvm/tools/llvm-exegesis/lib/X86/Target.cpp
@@ -8,12 +8,20 @@
//===----------------------------------------------------------------------===//
#include "../Target.h"
+#include "X86.h"
+
namespace exegesis {
namespace {
class ExegesisX86Target : public ExegesisTarget {
-private:
+ void addTargetSpecificPasses(llvm::PassManagerBase &PM) const override {
+ // Lowers FP pseudo-instructions, e.g. ABS_Fp32 -> ABS_F.
+ // FIXME: Enable when the exegesis assembler no longer does
+ // Properties.reset(TracksLiveness);
+ // PM.add(llvm::createX86FloatingPointStackifierPass());
+ }
+
bool matchesArch(llvm::Triple::ArchType Arch) const override {
return Arch == llvm::Triple::x86_64 || Arch == llvm::Triple::x86;
}