File: frame-base.ll

package info (click to toggle)
llvm-toolchain-11 1%3A11.0.1-2~deb10u1
  • links: PTS, VCS
  • area: main
  • in suites: buster
  • size: 995,836 kB
  • sloc: cpp: 4,767,656; ansic: 760,916; asm: 477,436; python: 170,940; objc: 69,804; lisp: 29,914; sh: 23,855; f90: 18,173; pascal: 7,551; perl: 7,471; ml: 5,603; awk: 3,489; makefile: 2,573; xml: 915; cs: 573; fortran: 503; javascript: 452
file content (22 lines) | stat: -rw-r--r-- 686 bytes parent folder | download | duplicates (23)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
; RUN: llc -mtriple=x86_64-apple-macosx -o - %s | FileCheck %s

; The issue here was a conflict between forming a %rip-relative lea and a
; FrameIndex lea. The %rip sanity-checks didn't consider that a base register
; had been set if we'd already matched a FrameIndex, when it has in reality.

@var = global i32 0

define void @test_frame_rip_conflict() {
; CHECK-LABEL: test_frame_rip_conflict:
; CHECK: leaq _var(%rip), [[TMPADDR:%r.*]]
; CHECK: leaq {{-?[0-9]+}}(%rsp,[[TMPADDR]]),
  %stackvar = alloca i32

  %stackint = ptrtoint i32* %stackvar to i64
  %addr = add i64 ptrtoint(i32* @var to i64), %stackint

  call void @eat_i64(i64 %addr)
  ret void
}

declare void @eat_i64(i64)