1 ; RUN: llc -mtriple=x86_64-windows-msvc < %s | FileCheck %s --check-prefix=X64 2 ; RUN: llc -mtriple=i686-windows-msvc < %s | FileCheck %s --check-prefix=X86 3 4 declare void @llvm.va_start(i8*) 5 declare void @llvm.va_end(i8*) 6 declare i32 @__CxxFrameHandler3(...) 7 declare void @g() 8 9 define i32 @f(i32 %a, ...) personality i32 (...)* @__CxxFrameHandler3 { 10 entry: 11 %ap = alloca i8* 12 invoke void @g() 13 to label %return unwind label %catch.dispatch 14 15 catch.dispatch: ; preds = %entry 16 %cs1 = catchswitch within none [label %catch] unwind to caller 17 18 catch: ; preds = %catch.dispatch 19 %0 = catchpad within %cs1 [i8* null, i32 64, i8* null] 20 %ap1 = bitcast i8** %ap to i8* 21 call void @llvm.va_start(i8* %ap1) 22 %argp.cur = load i8*, i8** %ap 23 %1 = bitcast i8* %argp.cur to i32* 24 %arg2 = load i32, i32* %1 25 call void @llvm.va_end(i8* %ap1) 26 catchret from %0 to label %return 27 28 return: ; preds = %entry, %catch 29 %retval.0 = phi i32 [ %arg2, %catch ], [ -1, %entry ] 30 ret i32 %retval.0 31 } 32 33 ; X64-LABEL: .seh_proc f 34 ; X64: pushq %rbp 35 ; X64: subq $64, %rsp 36 ; X64: leaq 64(%rsp), %rbp 37 ; X64: movq $-2, -8(%rbp) 38 ; X64: movl $-1, -20(%rbp) # 4-byte Folded Spill 39 ; X64: callq g 40 ; X64: .LBB0_1 41 ; X64: movl -20(%rbp), %eax # 4-byte Reload 42 ; X64: addq $64, %rsp 43 ; X64: popq %rbp 44 45 ; X64-LABEL: "?catch${{[0-9]}}@?0?f@4HA": 46 ; X64: .seh_proc "?catch${{[0-9]}}@?0?f@4HA" 47 ; X64: movq %rdx, 16(%rsp) 48 ; X64: pushq %rbp 49 ; X64: subq $32, %rsp 50 ; X64: leaq 64(%rdx), %rbp 51 ; arg2 is at RBP+40: 52 ; start at arg2 53 ; + 8 for arg1 54 ; + 8 for retaddr 55 ; + 8 for RBP 56 ; + 64 for stackalloc 57 ; - 64 for setframe 58 ; = 40 59 ; X64: movl 24(%rbp), %eax 60 ; X64: movl %eax, -20(%rbp) # 4-byte Spill 61 ; X64: leaq .LBB0_1(%rip), %rax 62 ; X64: addq $32, %rsp 63 ; X64: popq %rbp 64 ; X64: retq # CATCHRET 65 66 ; X86-LABEL: _f: # @f 67 ; X86: pushl %ebp 68 ; X86: movl %esp, %ebp 69 ; X86: pushl %ebx 70 ; X86: pushl %edi 71 ; X86: pushl %esi 72 ; X86: subl $24, %esp 73 ; X86: movl $-1, -36(%ebp) 74 ; X86: calll _g 75 ; X86: LBB0_[[retbb:[0-9]+]]: 76 ; X86: movl -36(%ebp), %eax 77 ; X86: addl $24, %esp 78 ; X86: popl %esi 79 ; X86: popl %edi 80 ; X86: popl %ebx 81 ; X86: popl %ebp 82 ; X86: retl 83 84 ; X86: LBB0_[[restorebb:[0-9]+]]: # Block address taken 85 ; X86: addl $12, %ebp 86 ; arg2 is at EBP offset 12: 87 ; + 4 for arg1 88 ; + 4 for retaddr 89 ; + 4 for EBP 90 ; X86: movl 12(%ebp), %eax 91 ; X86: movl %eax, -36(%ebp) 92 ; X86: jmp LBB0_[[retbb]] 93 94 ; X86-LABEL: "?catch${{[0-9]}}@?0?f@4HA": 95 ; X86: pushl %ebp 96 ; X86: addl $12, %ebp 97 ; Done due to mov %esp, %ebp 98 ; X86: leal 12(%ebp), %eax 99 ; X86: movl $LBB0_[[restorebb]], %eax 100 ; X86: popl %ebp 101 ; X86: retl # CATCHRET 102
