[TLI] Per-function fveclib for math library used for vectorization

Summary:
Encode `-fveclib` setting as per-function attribute so it can threaded through to LTO backends. Accordingly per-function TLI now reads
the attributes and select available vector function list based on that. Now we also populate function list for all supported vector
libraries for the shared per-module `TargetLibraryInfoImpl`, so each function can select its available vector list independently but without
duplicating the vector function lists. Inlining between incompatbile vectlib attributed is also prohibited now.

Subscribers: hiraditya, dexonsmith, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D77632

1 files changed, 4 insertions, 5 deletions

diff --git a/llvm/lib/Analysis/InlineCost.cpp b/llvm/lib/Analysis/InlineCost.cpp
index b9f0699..a96047a 100644
--- a/llvm/lib/Analysis/InlineCost.cpp
+++ b/llvm/lib/Analysis/InlineCost.cpp
@@ -104,10 +104,9 @@ static cl::opt<bool> OptComputeFullInlineCost(
     cl::desc("Compute the full inline cost of a call site even when the cost "
              "exceeds the threshold."));
 
-static cl::opt<bool> InlineCallerSupersetNoBuiltin(
-    "inline-caller-superset-nobuiltin", cl::Hidden, cl::init(true),
-    cl::ZeroOrMore,
-    cl::desc("Allow inlining when caller has a superset of callee's nobuiltin "
+static cl::opt<bool> InlineCallerSupersetTLI(
+    "inline-caller-superset-tli", cl::Hidden, cl::init(true), cl::ZeroOrMore,
+    cl::desc("Allow inlining when caller has a superset of callee's TLI "
              "attributes."));
 
 namespace {
@@ -2169,7 +2168,7 @@ static bool functionsHaveCompatibleAttributes(
   auto CalleeTLI = GetTLI(*Callee);
   return TTI.areInlineCompatible(Caller, Callee) &&
          GetTLI(*Caller).areInlineCompatible(CalleeTLI,
-                                             InlineCallerSupersetNoBuiltin) &&
+                                             InlineCallerSupersetTLI) &&
          AttributeFuncs::areInlineCompatible(*Caller, *Callee);
 }