mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-23 03:02:36 +01:00
1bc07f6217
This patch implements the final bits of CMSE code generation: * emit special linker symbols * restrict parameter passing to no use memory * emit BXNS and BLXNS instructions for returns from non-secure entry functions, and non-secure function calls, respectively * emit code to save/restore secure floating-point state around calls to non-secure functions * emit code to save/restore non-secure floating-pointy state upon entry to non-secure entry function, and return to non-secure state * emit code to clobber registers not used for arguments and returns * when switching to no-secure state Patch by Momchil Velikov, Bradley Smith, Javed Absar, David Green, possibly others. Differential Revision: https://reviews.llvm.org/D76518
27 lines
609 B
YAML
27 lines
609 B
YAML
# RUN: llc -mcpu=cortex-m33 -run-pass=arm-pseudo %s -o - | FileCheck %s
|
|
--- |
|
|
target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64"
|
|
target triple = "thumbv8m.main-arm-none-eabi"
|
|
|
|
define hidden void @foo() local_unnamed_addr #0 {
|
|
entry:
|
|
ret void
|
|
}
|
|
...
|
|
---
|
|
name: foo
|
|
alignment: 2
|
|
tracksRegLiveness: true
|
|
frameInfo:
|
|
maxCallFrameSize: 0
|
|
body: |
|
|
bb.0.entry:
|
|
tBXNS_RET
|
|
...
|
|
|
|
# CHECK-LABEL: name: foo
|
|
# CHECK: bb.0.entry:
|
|
# CHECK-NEXT: successors: %bb.1(0x40000000), %bb.2(0x40000000)
|
|
# CHECK: bb.1.entry:
|
|
# CHECK-NEXT: successors: %bb.2(0x80000000)
|