mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2025-10-31 08:16:47 +00:00
c537f79dcd
- Clear 'mayStore' flag when loading from the atomic variable before the spin loop - Clear kill flag from one use to multiple use in registers forming the address to that atomic variable - don't use a physical register as live-in register in BB (neither entry nor landing pad.) by copying it into virtual register (patch by Cameron Zwarich) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176538 91177308-0d34-0410-b5e6-96231b3b80d8
23 lines
476 B
LLVM
23 lines
476 B
LLVM
; RUN: llc < %s -mtriple=i686-none-linux -verify-machineinstrs | FileCheck %s
|
|
|
|
define i32* @test_atomic_ptr_load(i32** %a0) {
|
|
; CHECK: test_atomic_ptr_load
|
|
; CHECK: movl
|
|
; CHECK: movl
|
|
; CHECK: ret
|
|
0:
|
|
%0 = load atomic i32** %a0 seq_cst, align 4
|
|
ret i32* %0
|
|
}
|
|
|
|
define void @test_atomic_ptr_store(i32* %a0, i32** %a1) {
|
|
; CHECK: test_atomic_ptr_store
|
|
; CHECK: movl
|
|
; CHECK: movl
|
|
; CHECK: xchgl
|
|
; CHECK: ret
|
|
0:
|
|
store atomic i32* %a0, i32** %a1 seq_cst, align 4
|
|
ret void
|
|
}
|