9cac4e6d14
This allows targets to make more decisions about reserved registers after isel. For example, now it should be certain there are calls or stack objects in the frame or not, which could have been introduced by legalization. Patch by Matthias Braun llvm-svn: 363757
125 lines
3.1 KiB
YAML
125 lines
3.1 KiB
YAML
# RUN: llc -O0 -march=mips -mcpu=mips32r3 -mattr=+micromips,+eva -start-after=finalize-isel \
|
|
# RUN: -filetype obj %s -o - | llvm-objdump -mattr=+eva -d - | FileCheck %s
|
|
|
|
# Test that MIPS unaligned load/store instructions can be mapped to their
|
|
# corresponding microMIPS instructions.
|
|
--- |
|
|
define void @g(i32* %a, i32* %b) {
|
|
entry:
|
|
%0 = load i32, i32* %a, align 1
|
|
store i32 %0, i32* %b, align 1
|
|
ret void
|
|
}
|
|
|
|
define void @g2(i32* %a, i32* %b) {
|
|
entry:
|
|
%0 = load i32, i32* %a, align 1
|
|
store i32 %0, i32* %b, align 1
|
|
ret void
|
|
}
|
|
...
|
|
---
|
|
name: g
|
|
alignment: 2
|
|
exposesReturnsTwice: false
|
|
legalized: false
|
|
regBankSelected: false
|
|
selected: false
|
|
failedISel: false
|
|
tracksRegLiveness: true
|
|
liveins:
|
|
- { reg: '$a0', virtual-reg: '%0' }
|
|
- { reg: '$a1', virtual-reg: '%1' }
|
|
frameInfo:
|
|
isFrameAddressTaken: false
|
|
isReturnAddressTaken: false
|
|
hasStackMap: false
|
|
hasPatchPoint: false
|
|
stackSize: 0
|
|
offsetAdjustment: 0
|
|
maxAlignment: 1
|
|
adjustsStack: false
|
|
hasCalls: false
|
|
stackProtector: ''
|
|
maxCallFrameSize: 4294967295
|
|
hasOpaqueSPAdjustment: false
|
|
hasVAStart: false
|
|
hasMustTailInVarArgFunc: false
|
|
savePoint: ''
|
|
restorePoint: ''
|
|
fixedStack:
|
|
stack:
|
|
constants:
|
|
body: |
|
|
bb.0.entry:
|
|
liveins: $a0, $a1
|
|
|
|
%1:gpr32 = COPY $a1
|
|
%0:gpr32 = COPY $a0
|
|
%3:gpr32 = IMPLICIT_DEF
|
|
%2:gpr32 = LWL %0, 0, %3 :: (load 4 from %ir.a, align 1)
|
|
%4:gpr32 = LWR %0, 3, %2 :: (load 4 from %ir.a, align 1)
|
|
SWL %4, %1, 0 :: (store 4 into %ir.b, align 1)
|
|
SWR %4, %1, 3 :: (store 4 into %ir.b, align 1)
|
|
RetRA
|
|
|
|
...
|
|
---
|
|
name: g2
|
|
alignment: 2
|
|
exposesReturnsTwice: false
|
|
legalized: false
|
|
regBankSelected: false
|
|
selected: false
|
|
failedISel: false
|
|
tracksRegLiveness: true
|
|
liveins:
|
|
- { reg: '$a0', virtual-reg: '%0' }
|
|
- { reg: '$a1', virtual-reg: '%1' }
|
|
frameInfo:
|
|
isFrameAddressTaken: false
|
|
isReturnAddressTaken: false
|
|
hasStackMap: false
|
|
hasPatchPoint: false
|
|
stackSize: 0
|
|
offsetAdjustment: 0
|
|
maxAlignment: 1
|
|
adjustsStack: false
|
|
hasCalls: false
|
|
stackProtector: ''
|
|
maxCallFrameSize: 4294967295
|
|
hasOpaqueSPAdjustment: false
|
|
hasVAStart: false
|
|
hasMustTailInVarArgFunc: false
|
|
savePoint: ''
|
|
restorePoint: ''
|
|
fixedStack:
|
|
stack:
|
|
constants:
|
|
body: |
|
|
bb.0.entry:
|
|
liveins: $a0, $a1
|
|
|
|
%1:gpr32 = COPY $a1
|
|
%0:gpr32 = COPY $a0
|
|
%3:gpr32 = IMPLICIT_DEF
|
|
%2:gpr32 = LWLE %0, 0, %3 :: (load 4 from %ir.a, align 1)
|
|
%4:gpr32 = LWRE %0, 3, %2 :: (load 4 from %ir.a, align 1)
|
|
SWLE %4, %1, 0 :: (store 4 into %ir.b, align 1)
|
|
SWRE %4, %1, 3 :: (store 4 into %ir.b, align 1)
|
|
RetRA
|
|
|
|
...
|
|
|
|
# CHECK-LABEL: g:
|
|
# CHECK: 0: 60 24 00 00 lwl $1, 0($4)
|
|
# CHECK: 4: 60 24 10 03 lwr $1, 3($4)
|
|
# CHECK: 8: 60 25 80 00 swl $1, 0($5)
|
|
# CHECK: c: 60 25 90 03 swr $1, 3($5)
|
|
|
|
# CHECK-LABEL: g2:
|
|
# CHECK: 14: 60 24 64 00 lwle $1, 0($4)
|
|
# CHECK: 18: 60 24 66 03 lwre $1, 3($4)
|
|
# CHECK: 1c: 60 25 a0 00 swle $1, 0($5)
|
|
# CHECK: 20: 60 25 a2 03 swre $1, 3($5)
|