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| # ADJCALLSTACKDOWN and ADJCALLSTACKUP must be generated around TLS pseudo code as scheduling fence (PR25839).
# RUN: llc -mtriple=powerpc64le-linux-gnu -run-pass=ppc-tls-dynamic-call -verify-machineinstrs -o - %s | FileCheck %s
--- |
target datalayout = "e-m:e-i64:64-n32:64"
target triple = "powerpc64le-unknown-linux-gnu"
@tls_var = external thread_local local_unnamed_addr global i32
define i32 @tls_func() local_unnamed_addr {
entry:
%0 = load i32, i32* @tls_var
ret i32 %0
}
...
---
name: tls_func
alignment: 16
exposesReturnsTwice: false
legalized: false
regBankSelected: false
selected: false
tracksRegLiveness: true
registers:
- { id: 0, class: g8rc_and_g8rc_nox0, preferred-register: '' }
- { id: 1, class: g8rc_and_g8rc_nox0, preferred-register: '' }
- { id: 2, class: g8rc, preferred-register: '' }
liveins:
- { reg: '$x2' }
frameInfo:
isFrameAddressTaken: false
isReturnAddressTaken: false
hasStackMap: false
hasPatchPoint: false
stackSize: 0
offsetAdjustment: 0
maxAlignment: 0
adjustsStack: false
hasCalls: false
stackProtector: ''
maxCallFrameSize: 4294967295
hasOpaqueSPAdjustment: false
hasVAStart: false
hasMustTailInVarArgFunc: false
savePoint: ''
restorePoint: ''
fixedStack:
stack:
constants:
body: |
bb.0.entry:
liveins: $x2
%0 = ADDIStlsgdHA $x2, @tls_var
%1 = ADDItlsgdLADDR killed %0, @tls_var, @tls_var, implicit-def dead $x0, implicit-def dead $x3, implicit-def dead $x4, implicit-def dead $x5, implicit-def dead $x6, implicit-def dead $x7, implicit-def dead $x8, implicit-def dead $x9, implicit-def dead $x10, implicit-def dead $x11, implicit-def dead $x12, implicit-def dead $lr8, implicit-def dead $ctr8, implicit-def dead $cr0, implicit-def dead $cr1, implicit-def dead $cr5, implicit-def dead $cr6, implicit-def dead $cr7
%2 = LWZ8 0, killed %1 :: (dereferenceable load 4 from @tls_var)
$x3 = COPY %2
BLR8 implicit $lr8, implicit $rm, implicit $x3
; CHECK-LABEL: bb.0.entry
; CHECK: %[[reg1:[0-9]+]]:g8rc_and_g8rc_nox0 = ADDIStlsgdHA $x2, @tls_var
; CHECK: ADJCALLSTACKDOWN 0, 0
; CHECK: $x3 = ADDItlsgdL %[[reg1]], @tls_var
; CHECK: $x3 = GETtlsADDR $x3, @tls_var
; CHECK: ADJCALLSTACKUP 0, 0
; CHECK: BLR8
...
|