From: Nikita Popov <nikita.ppv@gmail.com>
Date: Tue, 22 Jun 2021 20:29:05 +0000 (+0200)
Subject: [InstCombine] Use getFunctionType()
X-Git-Tag: llvmorg-14-init~3198
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=8321335fd8ae9110f4faaabce6ef62c28b8f16cf;p=platform%2Fupstream%2Fllvm.git

[InstCombine] Use getFunctionType()

Avoid fetching pointer element type...
---

diff --git a/llvm/lib/Transforms/InstCombine/InstCombineCalls.cpp b/llvm/lib/Transforms/InstCombine/InstCombineCalls.cpp
index e211b42..ece98ff 100644
--- a/llvm/lib/Transforms/InstCombine/InstCombineCalls.cpp
+++ b/llvm/lib/Transforms/InstCombine/InstCombineCalls.cpp
@@ -2310,8 +2310,7 @@ Instruction *InstCombinerImpl::visitCallBase(CallBase &Call) {
   if (IntrinsicInst *II = findInitTrampoline(Callee))
     return transformCallThroughTrampoline(Call, *II);
 
-  PointerType *PTy = cast<PointerType>(Callee->getType());
-  FunctionType *FTy = cast<FunctionType>(PTy->getElementType());
+  FunctionType *FTy = Call.getFunctionType();
   if (FTy->isVarArg()) {
     int ix = FTy->getNumParams();
     // See if we can optimize any arguments passed through the varargs area of
diff --git a/llvm/test/Transforms/InstCombine/opaque-ptr.ll b/llvm/test/Transforms/InstCombine/opaque-ptr.ll
index 0249b96..45b6998 100644
--- a/llvm/test/Transforms/InstCombine/opaque-ptr.ll
+++ b/llvm/test/Transforms/InstCombine/opaque-ptr.ll
@@ -108,3 +108,12 @@ define ptr @load_bitcast_2(ptr %a) {
   %d = bitcast i8* %c to ptr
   ret ptr %d
 }
+
+define void @call(ptr %a) {
+; CHECK-LABEL: @call(
+; CHECK-NEXT:    call void [[A:%.*]]()
+; CHECK-NEXT:    ret void
+;
+  call void %a()
+  ret void
+}