1; RUN: llc < %s | FileCheck %s 2 3target datalayout = "e-m:w-i64:64-f80:128-n8:16:32:64-S128" 4target triple = "x86_64-pc-windows-msvc" 5 6declare i32 @__CxxFrameHandler3(...) 7declare void @throw() noreturn uwtable 8declare i8* @getval() 9declare void @llvm.trap() 10 11define i8* @reload_out_of_pad(i8* %arg) #0 personality i32 (...)* @__CxxFrameHandler3 { 12assertPassed: 13 invoke void @throw() 14 to label %unreachable unwind label %catch.dispatch 15 16catch: 17 %cp = catchpad within %cs [i8* null, i32 0, i8* null] 18 catchret from %cp to label %return 19 20 ; This block *must* appear after the catchret to test the bug. 21 ; FIXME: Make this an MIR test so we can control MBB layout. 22unreachable: 23 call void @llvm.trap() 24 unreachable 25 26catch.dispatch: 27 %cs = catchswitch within none [label %catch] unwind to caller 28 29return: 30 ret i8* %arg 31} 32 33; CHECK-LABEL: reload_out_of_pad: # @reload_out_of_pad 34; CHECK: movq %rcx, -[[arg_slot:[0-9]+]](%rbp) # 8-byte Spill 35; CHECK: callq throw 36; CHECK: ud2 37; CHECK: movq -[[arg_slot]](%rbp), %rax # 8-byte Reload 38; CHECK: retq 39 40; CHECK: "?catch${{[0-9]+}}@?0?reload_out_of_pad@4HA": 41; CHECK-NOT: Reload 42; CHECK: retq 43 44define i8* @spill_in_pad() #0 personality i32 (...)* @__CxxFrameHandler3 { 45assertPassed: 46 invoke void @throw() 47 to label %unreachable unwind label %catch.dispatch 48 49catch: 50 %cp = catchpad within %cs [i8* null, i32 0, i8* null] 51 %val = call i8* @getval() [ "funclet"(token %cp) ] 52 catchret from %cp to label %return 53 54unreachable: 55 call void @llvm.trap() 56 unreachable 57 58catch.dispatch: 59 %cs = catchswitch within none [label %catch] unwind to caller 60 61return: 62 ret i8* %val 63} 64 65; CHECK-LABEL: spill_in_pad: # @spill_in_pad 66; CHECK: callq throw 67; CHECK: ud2 68; CHECK: movq -[[val_slot:[0-9]+]](%rbp), %rax # 8-byte Reload 69; CHECK: retq 70 71; CHECK: "?catch${{[0-9]+}}@?0?spill_in_pad@4HA": 72; CHECK: callq getval 73; CHECK: movq %rax, -[[val_slot]](%rbp) # 8-byte Spill 74; CHECK: retq 75 76attributes #0 = { uwtable } 77