; RUN: llc < %s | FileCheck %s ; Based on this C++: ; struct A { ; int x; ; A(); ; A(const A &a); ; ~A(); ; }; ; extern "C" void takes_two(A a1, A a2); ; extern "C" void passes_two() { takes_two(A(), A()); } target datalayout = "e-m:x-p:32:32-i64:64-f80:32-n8:16:32-a:0:32-S32" target triple = "i686--windows-msvc" %struct.A = type { i32 } define void @passes_two() #0 personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) { entry: %argmem = alloca inalloca <{ %struct.A, %struct.A }>, align 4 %0 = getelementptr inbounds <{ %struct.A, %struct.A }>, <{ %struct.A, %struct.A }>* %argmem, i32 0, i32 1 %call = call x86_thiscallcc %struct.A* @"\01??0A@@QAE@XZ"(%struct.A* %0) %1 = getelementptr inbounds <{ %struct.A, %struct.A }>, <{ %struct.A, %struct.A }>* %argmem, i32 0, i32 0 %call1 = invoke x86_thiscallcc %struct.A* @"\01??0A@@QAE@XZ"(%struct.A* %1) to label %invoke.cont unwind label %ehcleanup invoke.cont: ; preds = %entry call void @takes_two(<{ %struct.A, %struct.A }>* inalloca nonnull %argmem) ret void ehcleanup: ; preds = %entry %2 = cleanuppad within none [] call x86_thiscallcc void @"\01??1A@@QAE@XZ"(%struct.A* %0) [ "funclet"(token %2) ] cleanupret from %2 unwind to caller } ; CHECK: _passes_two: ; CHECK: pushl %ebp ; CHECK: movl %esp, %ebp ; CHECK: subl ${{[0-9]+}}, %esp ; CHECK: pushl %eax ; CHECK: pushl %eax ; CHECK: calll "??0A@@QAE@XZ" ; CHECK: calll "??0A@@QAE@XZ" ; CHECK: calll _takes_two ; ESP must be restored via EBP due to "dynamic" alloca. ; CHECK: leal -{{[0-9]+}}(%ebp), %esp ; CHECK: popl %ebp ; CHECK: retl ; CHECK: "?dtor$2@?0?passes_two@4HA": ; CHECK: pushl %ebp ; CHECK: subl $8, %esp ; CHECK: addl $12, %ebp ; CHECK: {{movl|leal}} -{{[0-9]+}}(%ebp), %ecx ; CHECK: calll "??1A@@QAE@XZ" ; CHECK: addl $8, %esp ; CHECK: retl declare void @takes_two(<{ %struct.A, %struct.A }>* inalloca) #0 declare x86_thiscallcc %struct.A* @"\01??0A@@QAE@XZ"(%struct.A* returned) #0 declare i32 @__CxxFrameHandler3(...) declare x86_thiscallcc void @"\01??1A@@QAE@XZ"(%struct.A*) #0 attributes #0 = { "disable-tail-calls"="false" "less-precise-fpmad"="false" "frame-pointer"="none" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }