mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-23 11:13:28 +01:00
52dc890b04
When the callee requires a dynamic stack realignment, it is not possible to correcty access the incoming stack arguments using the stack pointer. We reserve a base pointer in such cases to access the function arguments inside the callee. The base pointer will hold the incoming stack pointer value before any kind of delta added to it. Reviewed By: arsenm, scott.linder Differential Revision: https://reviews.llvm.org/D78811
40 lines
3.7 KiB
YAML
40 lines
3.7 KiB
YAML
# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
|
|
# RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=hawaii -verify-machineinstrs -run-pass=prologepilog %s -o - | FileCheck %s
|
|
|
|
# Frame virtual SGPRs should not be used, as the register scavenger cannot usefully spill them anymore.
|
|
# Spilling is also worse than increment and restore of a frame register. There should be no spills remaining.
|
|
|
|
---
|
|
name: scavenge_sgpr_pei
|
|
tracksRegLiveness: true
|
|
|
|
stack:
|
|
- { id: 0, type: default, size: 4, alignment: 4096 }
|
|
|
|
machineFunctionInfo:
|
|
isEntryFunction: false
|
|
scratchRSrcReg: $sgpr0_sgpr1_sgpr2_sgpr3
|
|
frameOffsetReg: $sgpr33
|
|
stackPtrOffsetReg: $sgpr32
|
|
|
|
body: |
|
|
bb.0:
|
|
liveins: $vgpr1
|
|
|
|
; CHECK-LABEL: name: scavenge_sgpr_pei
|
|
; CHECK: liveins: $sgpr27, $vgpr1
|
|
; CHECK: $sgpr27 = frame-setup COPY $sgpr33
|
|
; CHECK: $sgpr4 = frame-setup S_ADD_U32 $sgpr32, 262080, implicit-def $scc
|
|
; CHECK: $sgpr33 = frame-setup S_AND_B32 killed $sgpr4, 4294705152, implicit-def $scc
|
|
; CHECK: $sgpr32 = frame-setup S_ADD_U32 $sgpr32, 524288, implicit-def $scc
|
|
; CHECK: S_NOP 0, implicit-def $sgpr4, implicit-def $sgpr5, implicit-def $sgpr6, implicit-def $sgpr7, implicit-def $sgpr8, implicit-def $sgpr9, implicit-def $sgpr10, implicit-def $sgpr11, implicit-def $sgpr12, implicit-def $sgpr13, implicit-def $sgpr14, implicit-def $sgpr15, implicit-def $sgpr16, implicit-def $sgpr17, implicit-def $sgpr18, implicit-def $sgpr19, implicit-def $sgpr20, implicit-def $sgpr21, implicit-def $sgpr22, implicit-def $sgpr23, implicit-def $sgpr24, implicit-def $sgpr25, implicit-def $sgpr26, implicit-def $sgpr17, implicit-def $sgpr28, implicit-def $sgpr29, implicit-def $sgpr30, implicit-def $sgpr31, implicit-def $vcc
|
|
; CHECK: $vgpr2 = V_LSHRREV_B32_e64 6, $sgpr33, implicit $exec
|
|
; CHECK: $vgpr0 = V_OR_B32_e32 killed $vgpr2, $vgpr1, implicit $exec, implicit $sgpr4, implicit $sgpr5, implicit $sgpr6, implicit $sgpr7, implicit $sgpr8, implicit $sgpr9, implicit $sgpr10, implicit $sgpr11, implicit $sgpr12, implicit $sgpr13, implicit $sgpr14, implicit $sgpr15, implicit $sgpr16, implicit $sgpr17, implicit $sgpr18, implicit $sgpr19, implicit $sgpr20, implicit $sgpr21, implicit $sgpr22, implicit $sgpr23, implicit $sgpr24, implicit $sgpr25, implicit $sgpr26, implicit $sgpr17, implicit $sgpr28, implicit $sgpr29, implicit $sgpr30, implicit $sgpr31
|
|
; CHECK: $sgpr32 = frame-destroy S_SUB_U32 $sgpr32, 524288, implicit-def $scc
|
|
; CHECK: $sgpr33 = frame-setup COPY $sgpr27
|
|
; CHECK: S_ENDPGM 0, implicit $vcc
|
|
S_NOP 0, implicit-def $sgpr4, implicit-def $sgpr5, implicit-def $sgpr6, implicit-def $sgpr7, implicit-def $sgpr8, implicit-def $sgpr9, implicit-def $sgpr10, implicit-def $sgpr11, implicit-def $sgpr12, implicit-def $sgpr13, implicit-def $sgpr14, implicit-def $sgpr15, implicit-def $sgpr16, implicit-def $sgpr17, implicit-def $sgpr18, implicit-def $sgpr19, implicit-def $sgpr20, implicit-def $sgpr21, implicit-def $sgpr22, implicit-def $sgpr23, implicit-def $sgpr24, implicit-def $sgpr25, implicit-def $sgpr26, implicit-def $sgpr17, implicit-def $sgpr28, implicit-def $sgpr29, implicit-def $sgpr30, implicit-def $sgpr31, implicit-def $vcc
|
|
$vgpr0 = V_OR_B32_e32 %stack.0, $vgpr1, implicit $exec, implicit $sgpr4, implicit $sgpr5, implicit $sgpr6, implicit $sgpr7, implicit $sgpr8, implicit $sgpr9, implicit $sgpr10, implicit $sgpr11, implicit $sgpr12, implicit $sgpr13, implicit $sgpr14, implicit $sgpr15, implicit $sgpr16, implicit $sgpr17, implicit $sgpr18, implicit $sgpr19, implicit $sgpr20, implicit $sgpr21, implicit $sgpr22, implicit $sgpr23, implicit $sgpr24, implicit $sgpr25, implicit $sgpr26, implicit $sgpr17, implicit $sgpr28, implicit $sgpr29, implicit $sgpr30, implicit $sgpr31
|
|
S_ENDPGM 0, implicit $vcc
|
|
...
|