1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5 2; RUN: llc < %s -mtriple=i386 --frame-pointer=all | FileCheck %s 3 4; ISel will try to fold pointer arithmetic into the address displacement. However, we don't 5; want to do that if the offset is very close to the expressible limit because the final frame 6; layout may push it over/under the limit. 7 8define i32 @foo(i1 %b) #0 { 9; CHECK-LABEL: foo: 10; CHECK: # %bb.0: # %entry 11; CHECK-NEXT: pushl %ebp 12; CHECK-NEXT: .cfi_def_cfa_offset 8 13; CHECK-NEXT: .cfi_offset %ebp, -8 14; CHECK-NEXT: movl %esp, %ebp 15; CHECK-NEXT: .cfi_def_cfa_register %ebp 16; CHECK-NEXT: subl $8, %esp 17; CHECK-NEXT: movl __stack_chk_guard, %eax 18; CHECK-NEXT: movl %eax, -4(%ebp) 19; CHECK-NEXT: testb $1, 8(%ebp) 20; CHECK-NEXT: jne .LBB0_1 21; CHECK-NEXT: # %bb.2: # %entry 22; CHECK-NEXT: xorl %eax, %eax 23; CHECK-NEXT: jmp .LBB0_3 24; CHECK-NEXT: .LBB0_1: 25; CHECK-NEXT: movl $-2147483647, %eax # imm = 0x80000001 26; CHECK-NEXT: leal -5(%ebp,%eax), %eax 27; CHECK-NEXT: .LBB0_3: # %entry 28; CHECK-NEXT: movl __stack_chk_guard, %ecx 29; CHECK-NEXT: cmpl -4(%ebp), %ecx 30; CHECK-NEXT: jne .LBB0_5 31; CHECK-NEXT: # %bb.4: # %entry 32; CHECK-NEXT: addl $8, %esp 33; CHECK-NEXT: popl %ebp 34; CHECK-NEXT: .cfi_def_cfa %esp, 4 35; CHECK-NEXT: retl 36; CHECK-NEXT: .LBB0_5: # %entry 37; CHECK-NEXT: .cfi_def_cfa %ebp, 8 38; CHECK-NEXT: calll __stack_chk_fail 39entry: 40 %a = alloca i8, align 1 41 %0 = ptrtoint ptr %a to i32 42 %sub = add i32 %0, -2147483647 43 %retval.0 = select i1 %b, i32 %sub, i32 0 44 ret i32 %retval.0 45} 46 47attributes #0 = { sspreq } 48