1c268a8ff4
While probing stack, the stack register is moved without dwarf information, which could cause panic if unwind the backtrace. This commit only add annotation for the inline stack probe case. Dwarf information for the loop case should be done in another patch and need further discussion. Reviewed By: nagisa Differential Revision: https://reviews.llvm.org/D99579
39 lines
1.6 KiB
LLVM
39 lines
1.6 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --no_x86_scrub_sp
|
|
; RUN: llc -mtriple=x86_64-linux-android < %s | FileCheck -check-prefix=CHECK-X86-64 %s
|
|
; RUN: llc -mtriple=i686-linux-android < %s | FileCheck -check-prefix=CHECK-X86-32 %s
|
|
|
|
define i32 @foo() local_unnamed_addr #0 {
|
|
; CHECK-X86-64-LABEL: foo:
|
|
; CHECK-X86-64: # %bb.0:
|
|
; CHECK-X86-64-NEXT: subq $4096, %rsp # imm = 0x1000
|
|
; CHECK-X86-64-NEXT: .cfi_adjust_cfa_offset 4096
|
|
; CHECK-X86-64-NEXT: movq $0, (%rsp)
|
|
; CHECK-X86-64-NEXT: subq $3784, %rsp # imm = 0xEC8
|
|
; CHECK-X86-64-NEXT: .cfi_def_cfa_offset 7888
|
|
; CHECK-X86-64-NEXT: movl $1, 672(%rsp)
|
|
; CHECK-X86-64-NEXT: movl -128(%rsp), %eax
|
|
; CHECK-X86-64-NEXT: addq $7880, %rsp # imm = 0x1EC8
|
|
; CHECK-X86-64-NEXT: .cfi_def_cfa_offset 8
|
|
; CHECK-X86-64-NEXT: retq
|
|
;
|
|
; CHECK-X86-32-LABEL: foo:
|
|
; CHECK-X86-32: # %bb.0:
|
|
; CHECK-X86-32-NEXT: subl $4096, %esp # imm = 0x1000
|
|
; CHECK-X86-32-NEXT: .cfi_adjust_cfa_offset 4096
|
|
; CHECK-X86-32-NEXT: movl $0, (%esp)
|
|
; CHECK-X86-32-NEXT: subl $3916, %esp # imm = 0xF4C
|
|
; CHECK-X86-32-NEXT: .cfi_def_cfa_offset 8016
|
|
; CHECK-X86-32-NEXT: movl $1, 800(%esp)
|
|
; CHECK-X86-32-NEXT: movl (%esp), %eax
|
|
; CHECK-X86-32-NEXT: addl $8012, %esp # imm = 0x1F4C
|
|
; CHECK-X86-32-NEXT: .cfi_def_cfa_offset 4
|
|
; CHECK-X86-32-NEXT: retl
|
|
%a = alloca i32, i64 2000, align 16
|
|
%b = getelementptr inbounds i32, i32* %a, i64 200
|
|
store volatile i32 1, i32* %b
|
|
%c = load volatile i32, i32* %a
|
|
ret i32 %c
|
|
}
|
|
|
|
attributes #0 = {"probe-stack"="inline-asm"}
|