ca57e8f23f
Add support for using a thread-local variable with a specified offset for holding the stack guard canary value. Closes: #46685
43 lines
1.4 KiB
LLVM
43 lines
1.4 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5
|
|
; RUN: llc -mtriple=riscv64 -verify-machineinstrs < %s \
|
|
; RUN: | FileCheck %s
|
|
|
|
define void @foo(i64 %t) sspstrong nounwind {
|
|
; CHECK-LABEL: foo:
|
|
; CHECK: # %bb.0:
|
|
; CHECK-NEXT: addi sp, sp, -32
|
|
; CHECK-NEXT: sd ra, 24(sp) # 8-byte Folded Spill
|
|
; CHECK-NEXT: sd s0, 16(sp) # 8-byte Folded Spill
|
|
; CHECK-NEXT: sd s1, 8(sp) # 8-byte Folded Spill
|
|
; CHECK-NEXT: addi s0, sp, 32
|
|
; CHECK-NEXT: lui s1, %hi(__stack_chk_guard)
|
|
; CHECK-NEXT: ld a1, %lo(__stack_chk_guard)(s1)
|
|
; CHECK-NEXT: sd a1, -32(s0)
|
|
; CHECK-NEXT: slli a0, a0, 2
|
|
; CHECK-NEXT: addi a0, a0, 15
|
|
; CHECK-NEXT: andi a0, a0, -16
|
|
; CHECK-NEXT: sub a0, sp, a0
|
|
; CHECK-NEXT: mv sp, a0
|
|
; CHECK-NEXT: call baz
|
|
; CHECK-NEXT: ld a0, %lo(__stack_chk_guard)(s1)
|
|
; CHECK-NEXT: ld a1, -32(s0)
|
|
; CHECK-NEXT: bne a0, a1, .LBB0_2
|
|
; CHECK-NEXT: # %bb.1:
|
|
; CHECK-NEXT: addi sp, s0, -32
|
|
; CHECK-NEXT: ld ra, 24(sp) # 8-byte Folded Reload
|
|
; CHECK-NEXT: ld s0, 16(sp) # 8-byte Folded Reload
|
|
; CHECK-NEXT: ld s1, 8(sp) # 8-byte Folded Reload
|
|
; CHECK-NEXT: addi sp, sp, 32
|
|
; CHECK-NEXT: ret
|
|
; CHECK-NEXT: .LBB0_2:
|
|
; CHECK-NEXT: call __stack_chk_fail
|
|
%vla = alloca i32, i64 %t, align 4
|
|
call void @baz(ptr %vla)
|
|
ret void
|
|
}
|
|
|
|
declare void @baz(ptr)
|
|
|
|
!llvm.module.flags = !{!1}
|
|
!1 = !{i32 2, !"stack-protector-guard", !"global"}
|