xref: /llvm-project/llvm/test/CodeGen/RISCV/stack-guard-global.ll (revision ca57e8f23ff042c0ae996b040f364ced433b7507)
1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5
2; RUN: llc -mtriple=riscv64 -verify-machineinstrs < %s \
3; RUN:     | FileCheck %s
4
5define void @foo(i64 %t) sspstrong nounwind {
6; CHECK-LABEL: foo:
7; CHECK:       # %bb.0:
8; CHECK-NEXT:    addi sp, sp, -32
9; CHECK-NEXT:    sd ra, 24(sp) # 8-byte Folded Spill
10; CHECK-NEXT:    sd s0, 16(sp) # 8-byte Folded Spill
11; CHECK-NEXT:    sd s1, 8(sp) # 8-byte Folded Spill
12; CHECK-NEXT:    addi s0, sp, 32
13; CHECK-NEXT:    lui s1, %hi(__stack_chk_guard)
14; CHECK-NEXT:    ld a1, %lo(__stack_chk_guard)(s1)
15; CHECK-NEXT:    sd a1, -32(s0)
16; CHECK-NEXT:    slli a0, a0, 2
17; CHECK-NEXT:    addi a0, a0, 15
18; CHECK-NEXT:    andi a0, a0, -16
19; CHECK-NEXT:    sub a0, sp, a0
20; CHECK-NEXT:    mv sp, a0
21; CHECK-NEXT:    call baz
22; CHECK-NEXT:    ld a0, %lo(__stack_chk_guard)(s1)
23; CHECK-NEXT:    ld a1, -32(s0)
24; CHECK-NEXT:    bne a0, a1, .LBB0_2
25; CHECK-NEXT:  # %bb.1:
26; CHECK-NEXT:    addi sp, s0, -32
27; CHECK-NEXT:    ld ra, 24(sp) # 8-byte Folded Reload
28; CHECK-NEXT:    ld s0, 16(sp) # 8-byte Folded Reload
29; CHECK-NEXT:    ld s1, 8(sp) # 8-byte Folded Reload
30; CHECK-NEXT:    addi sp, sp, 32
31; CHECK-NEXT:    ret
32; CHECK-NEXT:  .LBB0_2:
33; CHECK-NEXT:    call __stack_chk_fail
34  %vla = alloca i32, i64 %t, align 4
35  call void @baz(ptr %vla)
36  ret void
37}
38
39declare void @baz(ptr)
40
41!llvm.module.flags = !{!1}
42!1 = !{i32 2, !"stack-protector-guard", !"global"}
43