1; RUN: opt -passes=always-inline -S < %s | FileCheck %s 2 3; We used to misclassify inalloca as a static alloca in the inliner. This only 4; arose with for alwaysinline functions, because the normal inliner refuses to 5; inline such things. 6 7; Generated using this C++ source: 8; struct Foo { 9; Foo(); 10; Foo(const Foo &o); 11; ~Foo(); 12; int a; 13; }; 14; __forceinline void h(Foo o) {} 15; __forceinline void g() { h(Foo()); } 16; void f() { g(); } 17 18; ModuleID = 't.cpp' 19source_filename = "t.cpp" 20target datalayout = "e-m:x-p:32:32-i64:64-f80:32-n8:16:32-a:0:32-S32" 21target triple = "i386-pc-windows-msvc19.0.24210" 22 23%struct.Foo = type { i32 } 24 25declare ptr @llvm.stacksave() 26declare void @llvm.stackrestore(ptr) 27 28declare x86_thiscallcc ptr @"\01??0Foo@@QAE@XZ"(ptr returned) unnamed_addr 29declare x86_thiscallcc void @"\01??1Foo@@QAE@XZ"(ptr) unnamed_addr 30 31define void @f() { 32entry: 33 call void @g() 34 ret void 35} 36 37define internal void @g() alwaysinline { 38entry: 39 %inalloca.save = call ptr @llvm.stacksave() 40 %argmem = alloca inalloca <{ %struct.Foo }>, align 4 41 %call = call x86_thiscallcc ptr @"\01??0Foo@@QAE@XZ"(ptr %argmem) 42 call void @h(ptr inalloca(<{ %struct.Foo }>) %argmem) 43 call void @llvm.stackrestore(ptr %inalloca.save) 44 ret void 45} 46 47; Function Attrs: alwaysinline inlinehint nounwind 48define internal void @h(ptr inalloca(<{ %struct.Foo }>)) alwaysinline { 49entry: 50 call x86_thiscallcc void @"\01??1Foo@@QAE@XZ"(ptr %0) 51 ret void 52} 53 54; CHECK: define void @f() 55; CHECK: %[[STACKSAVE:.*]] = call ptr @llvm.stacksave.p0() 56; CHECK: %[[ARGMEM:.*]] = alloca inalloca <{ %struct.Foo }>, align 4 57; CHECK: %[[CALL:.*]] = call x86_thiscallcc ptr @"\01??0Foo@@QAE@XZ"(ptr %[[ARGMEM]]) 58; CHECK: call x86_thiscallcc void @"\01??1Foo@@QAE@XZ"(ptr %[[ARGMEM]]) 59; CHECK: call void @llvm.stackrestore.p0(ptr %[[STACKSAVE]]) 60; CHECK: ret void 61