[clang][NewPM] Fix broken -O0 test from the AlwaysInliner
This contains the part of D62225 which prevents insertion of lifetime
intrinsics when creating the AlwaysInliner. This fixes the following tests
when the new PM is enabled by default:
Clang :: CodeGen/aarch64-neon-across.c
Clang :: CodeGen/aarch64-neon-fcvt-intrinsics.c
Clang :: CodeGen/aarch64-neon-fma.c
Clang :: CodeGen/aarch64-neon-perm.c
Clang :: CodeGen/aarch64-neon-tbl.c
Clang :: CodeGen/aarch64-poly128.c
Clang :: CodeGen/aarch64-v8.2a-neon-intrinsics.c
Clang :: CodeGen/arm-neon-fma.c
Clang :: CodeGen/arm-neon-numeric-maxmin.c
Clang :: CodeGen/arm-neon-vcvtX.c
Clang :: CodeGen/avx-builtins.c
Clang :: CodeGen/builtins-ppc-p9vector.c
Clang :: CodeGen/builtins-ppc-vsx.c
Clang :: CodeGen/lifetime.c
Clang :: CodeGen/sse-builtins.c
Clang :: CodeGen/sse2-builtins.c
Differential Revision: https://reviews.llvm.org/D63153
llvm-svn: 363277
diff --git a/clang/lib/CodeGen/BackendUtil.cpp b/clang/lib/CodeGen/BackendUtil.cpp
index ec7c62d..b311047 100644
--- a/clang/lib/CodeGen/BackendUtil.cpp
+++ b/clang/lib/CodeGen/BackendUtil.cpp
@@ -1111,8 +1111,10 @@
MPM.addPass(InstrProfiling(*Options, false));
// Build a minimal pipeline based on the semantics required by Clang,
- // which is just that always inlining occurs.
- MPM.addPass(AlwaysInlinerPass());
+ // which is just that always inlining occurs. Further, disable generating
+ // lifetime intrinsics to avoid enabling further optimizations during
+ // code generation.
+ MPM.addPass(AlwaysInlinerPass(/*InsertLifetimeIntrinsics=*/false));
// At -O0 we directly run necessary sanitizer passes.
if (LangOpts.Sanitize.has(SanitizerKind::LocalBounds))