forked from OSchip/llvm-project
154 lines
5.0 KiB
YAML
154 lines
5.0 KiB
YAML
# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
|
|
## Check that the delay-slot filler does not attempt to split BUNDLE instructions
|
|
# RUN: llc %s -start-before=mips-delay-slot-filler -stop-after=mips-delay-slot-filler \
|
|
# RUN: -verify-machineinstrs -o - | FileCheck %s
|
|
## Check that we can emit assembly for input with BUNDLE instructions:
|
|
# RUN: llc %s -start-before=mips-delay-slot-filler -verify-machineinstrs -o - | FileCheck %s -check-prefix ASM
|
|
|
|
# ASM: # %bb.0:
|
|
# ASM-NEXT: daddiu $sp, $sp, -16
|
|
# ASM-NEXT: sd $ra, 8($sp)
|
|
## BUNDLE should be emitted in order:
|
|
# ASM-NEXT: daddiu $sp, $sp, -16
|
|
# ASM-NEXT: daddiu $sp, $sp, 16
|
|
# ASM-NEXT: beqz $4, .LBB0_2
|
|
# ASM-NEXT: nop
|
|
--- |
|
|
target datalayout = "E-m:e-i8:8:32-i16:16:32-i64:64-n32:64-S128"
|
|
target triple = "mips64-unknown-freebsd"
|
|
declare i8* @func_a(i64 zeroext)
|
|
declare i8* @func_b(i64 zeroext)
|
|
; Function Attrs: nounwind
|
|
define i8* @test(i64 zeroext %nbytes) local_unnamed_addr #0 {
|
|
entry:
|
|
%cmp = icmp eq i64 %nbytes, 0
|
|
br i1 %cmp, label %if.else, label %if.then
|
|
|
|
if.then: ; preds = %entry
|
|
%call = tail call i8* @func_a(i64 zeroext %nbytes)
|
|
br label %return
|
|
|
|
if.else: ; preds = %entry
|
|
%call1 = tail call i8* @func_b(i64 zeroext 0)
|
|
br label %return
|
|
|
|
return: ; preds = %if.else, %if.then
|
|
%retval.0 = phi i8* [ %call, %if.then ], [ %call1, %if.else ]
|
|
ret i8* %retval.0
|
|
}
|
|
; Function Attrs: nounwind
|
|
declare void @llvm.stackprotector(i8*, i8**) #0
|
|
|
|
attributes #0 = { nounwind }
|
|
|
|
...
|
|
---
|
|
name: test
|
|
alignment: 8
|
|
exposesReturnsTwice: false
|
|
legalized: false
|
|
regBankSelected: false
|
|
selected: false
|
|
failedISel: false
|
|
tracksRegLiveness: true
|
|
hasWinCFI: false
|
|
registers: []
|
|
liveins:
|
|
- { reg: '$a0_64', virtual-reg: '' }
|
|
frameInfo:
|
|
isFrameAddressTaken: false
|
|
isReturnAddressTaken: false
|
|
hasStackMap: false
|
|
hasPatchPoint: false
|
|
stackSize: 16
|
|
offsetAdjustment: 0
|
|
maxAlignment: 8
|
|
adjustsStack: true
|
|
hasCalls: true
|
|
stackProtector: ''
|
|
maxCallFrameSize: 0
|
|
cvBytesOfCalleeSavedRegisters: 0
|
|
hasOpaqueSPAdjustment: false
|
|
hasVAStart: false
|
|
hasMustTailInVarArgFunc: false
|
|
localFrameSize: 0
|
|
savePoint: ''
|
|
restorePoint: ''
|
|
fixedStack: []
|
|
stack:
|
|
- { id: 0, name: '', type: spill-slot, offset: -8, size: 8, alignment: 8,
|
|
stack-id: default, callee-saved-register: '$ra_64', callee-saved-restored: true,
|
|
debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
|
|
callSites: []
|
|
constants: []
|
|
machineFunctionInfo: {}
|
|
body: |
|
|
; CHECK-LABEL: name: test
|
|
; CHECK: bb.0.entry:
|
|
; CHECK: successors: %bb.2(0x30000000), %bb.1(0x50000000)
|
|
; CHECK: $sp_64 = DADDiu $sp_64, -16
|
|
; CHECK: CFI_INSTRUCTION def_cfa_offset 16
|
|
; CHECK: SD killed $ra_64, $sp_64, 8 :: (store (s64) into %stack.0)
|
|
; CHECK: CFI_INSTRUCTION offset $ra_64, -8
|
|
; CHECK: BUNDLE {
|
|
; CHECK: $sp_64 = DADDiu $sp_64, -16
|
|
; CHECK: $sp_64 = DADDiu $sp_64, 16
|
|
; CHECK: }
|
|
; CHECK: BEQ64 renamable $a0_64, $zero_64, %bb.2, implicit-def $at {
|
|
; CHECK: NOP
|
|
; CHECK: }
|
|
; CHECK: bb.1.if.then:
|
|
; CHECK: successors: %bb.3(0x80000000)
|
|
; CHECK: JAL @func_a, csr_n64, implicit-def dead $ra, implicit $a0_64, implicit-def $sp, implicit-def $v0_64 {
|
|
; CHECK: NOP
|
|
; CHECK: }
|
|
; CHECK: J %bb.3, implicit-def dead $at {
|
|
; CHECK: NOP
|
|
; CHECK: }
|
|
; CHECK: bb.2.if.else:
|
|
; CHECK: successors: %bb.3(0x80000000)
|
|
; CHECK: JAL @func_b, csr_n64, implicit-def dead $ra, implicit $a0_64, implicit-def $sp, implicit-def $v0_64 {
|
|
; CHECK: $a0_64 = DADDiu $zero_64, 0
|
|
; CHECK: }
|
|
; CHECK: bb.3.return:
|
|
; CHECK: $ra_64 = LD $sp_64, 8 :: (load (s64) from %stack.0)
|
|
; CHECK: PseudoReturn64 undef $ra_64, implicit $v0_64 {
|
|
; CHECK: $sp_64 = DADDiu $sp_64, 16
|
|
; CHECK: }
|
|
bb.0.entry:
|
|
successors: %bb.2(0x30000000), %bb.1(0x50000000)
|
|
liveins: $a0_64, $ra_64
|
|
|
|
$sp_64 = DADDiu $sp_64, -16
|
|
CFI_INSTRUCTION def_cfa_offset 16
|
|
SD killed $ra_64, $sp_64, 8 :: (store (s64) into %stack.0)
|
|
CFI_INSTRUCTION offset $ra_64, -8
|
|
; This BUNDLE instruction must not be split by the delay slot filler:
|
|
BUNDLE {
|
|
$sp_64 = DADDiu $sp_64, -16
|
|
$sp_64 = DADDiu $sp_64, 16
|
|
}
|
|
BEQ64 renamable $a0_64, $zero_64, %bb.2, implicit-def $at
|
|
|
|
bb.1.if.then:
|
|
successors: %bb.3(0x80000000)
|
|
liveins: $a0_64
|
|
|
|
JAL @func_a, csr_n64, implicit-def dead $ra, implicit $a0_64, implicit-def $sp, implicit-def $v0_64
|
|
J %bb.3, implicit-def dead $at
|
|
|
|
bb.2.if.else:
|
|
successors: %bb.3(0x80000000)
|
|
|
|
$a0_64 = DADDiu $zero_64, 0
|
|
JAL @func_b, csr_n64, implicit-def dead $ra, implicit $a0_64, implicit-def $sp, implicit-def $v0_64
|
|
|
|
bb.3.return:
|
|
liveins: $v0_64
|
|
|
|
$ra_64 = LD $sp_64, 8 :: (load (s64) from %stack.0)
|
|
$sp_64 = DADDiu $sp_64, 16
|
|
PseudoReturn64 undef $ra_64, implicit $v0_64
|
|
|
|
...
|