diff --git a/llvm/include/llvm/IR/Intrinsics.td b/llvm/include/llvm/IR/Intrinsics.td --- a/llvm/include/llvm/IR/Intrinsics.td +++ b/llvm/include/llvm/IR/Intrinsics.td @@ -1461,7 +1461,7 @@ // Test whether a pointer is associated with a type metadata identifier. def int_type_test : DefaultAttrsIntrinsic<[llvm_i1_ty], [llvm_ptr_ty, llvm_metadata_ty], - [IntrNoMem, IntrWillReturn]>; + [IntrNoMem, IntrWillReturn, IntrSpeculatable]>; // Safely loads a function pointer from a virtual table pointer using type metadata. def int_type_checked_load : DefaultAttrsIntrinsic<[llvm_ptr_ty, llvm_i1_ty], diff --git a/llvm/test/Transforms/Inline/ephemeral.ll b/llvm/test/Transforms/Inline/ephemeral.ll --- a/llvm/test/Transforms/Inline/ephemeral.ll +++ b/llvm/test/Transforms/Inline/ephemeral.ll @@ -1,30 +1,35 @@ -; RUN: opt -S -Oz %s | FileCheck %s +; RUN: opt -S -inline %s -debug-only=inline-cost 2>&1 | FileCheck %s +; Only the load and ret should be included in the instruction count, not +; the instructions feeding the assume. +; CHECK: NumInstructions: 2 @a = global i32 4 -define i32 @inner() { +define i32 @inner(i8* %y) { %a1 = load volatile i32, i32* @a - ; Here are enough instructions to prevent inlining, but because they are used - ; only by the @llvm.assume intrinsic, they're free (and, thus, inlining will - ; still happen). + ; Because these instructions are used only by the @llvm.assume intrinsic, + ; they're free and should not be included in the instruction count when + ; computing the inline cost. %a2 = mul i32 %a1, %a1 - %a3 = sub i32 %a1, 5 + %a3 = sub i32 %a1, %a2 %a4 = udiv i32 %a3, -13 %a5 = mul i32 %a4, %a4 %a6 = add i32 %a5, %a5 %ca = icmp sgt i32 %a6, -7 - tail call void @llvm.assume(i1 %ca) + %r = call i1 @llvm.type.test(i8* %y, metadata !0) + %ca2 = icmp eq i1 %ca, %r + tail call void @llvm.assume(i1 %ca2) ret i32 %a1 } -; @inner() should be inlined for -Oz. -; CHECK-NOT: call i1 @inner -define i32 @outer() optsize { - %r = call i32 @inner() +define i32 @outer(i8* %y) optsize { + %r = call i32 @inner(i8* %y) ret i32 %r } declare void @llvm.assume(i1) nounwind +declare i1 @llvm.type.test(i8*, metadata) nounwind readnone +!0 = !{i32 0, !"typeid1"} diff --git a/llvm/test/Transforms/SimplifyCFG/no-md-sink.ll b/llvm/test/Transforms/SimplifyCFG/no-md-sink.ll --- a/llvm/test/Transforms/SimplifyCFG/no-md-sink.ll +++ b/llvm/test/Transforms/SimplifyCFG/no-md-sink.ll @@ -47,6 +47,6 @@ ; CHECK-LABEL: test2 ; CHECK: %[[S:[a-z0-9.]+]] = select i1 %flag, i8* %y, i8* %z -; CHECK: %[[R:[a-z0-9.]+]] = call i1 @llvm.type.test(i8* %[[S]], metadata !0) +; CHECK: %[[R:[a-z0-9.]+]] = call i1 @llvm.type.test(i8* %[[S]], metadata ![[MD:[0-9]+]] ; CHECK: ret i1 %[[R]] - +; CHECK: ![[MD]] = !{i32 0, !"typeid1"}