1 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py 2 ; RUN: llc -mtriple=x86_64-pc-linux -stackrealign -stack-alignment=32 < %s | FileCheck %s 3 ; RUN: llc -mtriple=x86_64-pc-linux-gnux32 -stackrealign -stack-alignment=32 < %s | FileCheck -check-prefix=X32ABI %s 4 5 ; This should run with NaCl as well ( -mtriple=x86_64-pc-nacl ) but currently doesn't due to PR22655 6 7 ; Make sure the correct register gets set up as the base pointer 8 ; This should be rbx for x64 and 64-bit NaCl and ebx for x32 9 ; NACL-LABEL: base 10 ; NACL: subq $32, %rsp 11 ; NACL: movq %rsp, %rbx 12 13 declare i32 @helper() nounwind 14 define void @base() #0 { 15 ; CHECK-LABEL: base: 16 ; CHECK: # %bb.0: # %entry 17 ; CHECK-NEXT: pushq %rbp 18 ; CHECK-NEXT: movq %rsp, %rbp 19 ; CHECK-NEXT: pushq %rbx 20 ; CHECK-NEXT: andq $-32, %rsp 21 ; CHECK-NEXT: subq $32, %rsp 22 ; CHECK-NEXT: movq %rsp, %rbx 23 ; CHECK-NEXT: callq helper 24 ; CHECK-NEXT: movq %rsp, %rcx 25 ; CHECK-NEXT: movl %eax, %eax 26 ; CHECK-NEXT: leaq 31(,%rax,4), %rax 27 ; CHECK-NEXT: andq $-32, %rax 28 ; CHECK-NEXT: movq %rcx, %rdx 29 ; CHECK-NEXT: subq %rax, %rdx 30 ; CHECK-NEXT: movq %rdx, %rsp 31 ; CHECK-NEXT: negq %rax 32 ; CHECK-NEXT: movl $0, (%rcx,%rax) 33 ; CHECK-NEXT: leaq -8(%rbp), %rsp 34 ; CHECK-NEXT: popq %rbx 35 ; CHECK-NEXT: popq %rbp 36 ; CHECK-NEXT: retq 37 ; 38 ; X32ABI-LABEL: base: 39 ; X32ABI: # %bb.0: # %entry 40 ; X32ABI-NEXT: pushq %rbp 41 ; X32ABI-NEXT: movl %esp, %ebp 42 ; X32ABI-NEXT: pushq %rbx 43 ; X32ABI-NEXT: andl $-32, %esp 44 ; X32ABI-NEXT: subl $32, %esp 45 ; X32ABI-NEXT: movl %esp, %ebx 46 ; X32ABI-NEXT: callq helper 47 ; X32ABI-NEXT: # kill: def $eax killed $eax def $rax 48 ; X32ABI-NEXT: movl %esp, %ecx 49 ; X32ABI-NEXT: leal 31(,%rax,4), %eax 50 ; X32ABI-NEXT: andl $-32, %eax 51 ; X32ABI-NEXT: movl %ecx, %edx 52 ; X32ABI-NEXT: subl %eax, %edx 53 ; X32ABI-NEXT: movl %edx, %esp 54 ; X32ABI-NEXT: negl %eax 55 ; X32ABI-NEXT: movl $0, (%ecx,%eax) 56 ; X32ABI-NEXT: leal -8(%ebp), %esp 57 ; X32ABI-NEXT: popq %rbx 58 ; X32ABI-NEXT: popq %rbp 59 ; X32ABI-NEXT: retq 60 entry: 61 %k = call i32 @helper() 62 %a = alloca i32, i32 %k, align 4 63 store i32 0, i32* %a, align 4 64 ret void 65 } 66 67 attributes #0 = { nounwind "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf"} 68
