File: speculative-load-hardening-no-spill.ll

package info (click to toggle)
llvm-toolchain-13 1%3A13.0.1-6~deb11u1
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 1,418,812 kB
  • sloc: cpp: 5,290,827; ansic: 996,570; asm: 544,593; python: 188,212; objc: 72,027; lisp: 30,291; f90: 25,395; sh: 24,900; javascript: 9,780; pascal: 9,398; perl: 7,484; ml: 5,432; awk: 3,523; makefile: 2,892; xml: 953; cs: 573; fortran: 539
file content (15 lines) | stat: -rw-r--r-- 591 bytes parent folder | download | duplicates (8)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
; RUN: llc < %s -mtriple=x86_64-unknown-linux-gnu -x86-speculative-load-hardening | FileCheck %s

define i32 @foo(void ()** %0) {
; CHECK-LABEL: foo:
; CHECK:         callq *(%{{.*}})
; CHECK-NEXT:  .Lslh_ret_addr0:
; CHECK-NEXT:    movq %rsp, %rcx
; CHECK-NEXT:    movq -{{[0-9]+}}(%rsp), %rax
; CHECK-NEXT:    sarq $63, %rcx
; CHECK-NEXT:    cmpq $.Lslh_ret_addr0, %rax
  %2 = load void ()*, void ()** %0
  call void asm sideeffect "", "~{bx},~{cx},~{dx},~{bp},~{si},~{di},~{r8},~{r9},~{r10},~{r11},~{r12},~{r13},~{r14},~{r15},~{dirflag},~{fpsr},~{flags}"()
  call void %2()
  ret i32 0
}