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llvm-project/llvm/test/CodeGen/ARM/fpoffset_overflow.mir

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ARMFrameLowering: Reserve emergency spill slot for large arguments Re-commit after revert in r300668. Changed getMaxFPOffset() to a more conservative heuristic instead of trying to be clever and missing for some exotic calling conventions. We need to reserve an emergency spill slot in cases with large argument types that could overflow immediate offsets for FP relative address calculations. rdar://31317893 Differential Revision: https://reviews.llvm.org/D31643 llvm-svn: 300761
2017-04-20 05:11:44 +08:00
# RUN: llc -o - %s -mtriple=thumbv7-- -run-pass=stack-protector -run-pass=prologepilog | FileCheck %s
---
# This should trigger an emergency spill in the register scavenger because the
# frame offset into the large argument is too large.
# CHECK-LABEL: name: func0
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
# CHECK: t2STRi12 killed [[SPILLED:\$r[0-9]+]], $sp, 0, 14, $noreg :: (store 4 into %stack.0)
# CHECK: [[SPILLED]] = t2ADDri killed $sp, 4096, 14, $noreg, $noreg
# CHECK: $sp = t2LDRi12 killed [[SPILLED]], 40, 14, $noreg :: (load 4)
# CHECK: [[SPILLED]] = t2LDRi12 $sp, 0, 14, $noreg :: (load 4 from %stack.0)
ARMFrameLowering: Reserve emergency spill slot for large arguments Re-commit after revert in r300668. Changed getMaxFPOffset() to a more conservative heuristic instead of trying to be clever and missing for some exotic calling conventions. We need to reserve an emergency spill slot in cases with large argument types that could overflow immediate offsets for FP relative address calculations. rdar://31317893 Differential Revision: https://reviews.llvm.org/D31643 llvm-svn: 300761
2017-04-20 05:11:44 +08:00
name: func0
tracksRegLiveness: true
fixedStack:
- { id: 0, offset: 4084, size: 4, alignment: 4, isImmutable: true,
isAliased: false }
- { id: 1, offset: -12, size: 4096, alignment: 4, isImmutable: false,
isAliased: false }
body: |
bb.0:
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
$r0 = IMPLICIT_DEF
$r1 = IMPLICIT_DEF
$r2 = IMPLICIT_DEF
$r3 = IMPLICIT_DEF
$r4 = IMPLICIT_DEF
$r5 = IMPLICIT_DEF
$r6 = IMPLICIT_DEF
$r7 = IMPLICIT_DEF
$r8 = IMPLICIT_DEF
$r9 = IMPLICIT_DEF
$r10 = IMPLICIT_DEF
$r11 = IMPLICIT_DEF
$r12 = IMPLICIT_DEF
$lr = IMPLICIT_DEF
ARMFrameLowering: Reserve emergency spill slot for large arguments Re-commit after revert in r300668. Changed getMaxFPOffset() to a more conservative heuristic instead of trying to be clever and missing for some exotic calling conventions. We need to reserve an emergency spill slot in cases with large argument types that could overflow immediate offsets for FP relative address calculations. rdar://31317893 Differential Revision: https://reviews.llvm.org/D31643 llvm-svn: 300761
2017-04-20 05:11:44 +08:00
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
$sp = t2LDRi12 %fixed-stack.0, 0, 14, $noreg :: (load 4)
ARMFrameLowering: Reserve emergency spill slot for large arguments Re-commit after revert in r300668. Changed getMaxFPOffset() to a more conservative heuristic instead of trying to be clever and missing for some exotic calling conventions. We need to reserve an emergency spill slot in cases with large argument types that could overflow immediate offsets for FP relative address calculations. rdar://31317893 Differential Revision: https://reviews.llvm.org/D31643 llvm-svn: 300761
2017-04-20 05:11:44 +08:00
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
KILL $r0
KILL $r1
KILL $r2
KILL $r3
KILL $r4
KILL $r5
KILL $r6
KILL $r7
KILL $r8
KILL $r9
KILL $r10
KILL $r11
KILL $r12
KILL $lr
ARMFrameLowering: Reserve emergency spill slot for large arguments Re-commit after revert in r300668. Changed getMaxFPOffset() to a more conservative heuristic instead of trying to be clever and missing for some exotic calling conventions. We need to reserve an emergency spill slot in cases with large argument types that could overflow immediate offsets for FP relative address calculations. rdar://31317893 Differential Revision: https://reviews.llvm.org/D31643 llvm-svn: 300761
2017-04-20 05:11:44 +08:00
...
---
# This should not trigger an emergency spill yet.
# CHECK-LABEL: name: func1
# CHECK-NOT: t2STRi12
# CHECK-NOT: t2ADDri
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
# CHECK: $r11 = t2LDRi12 $sp, 4092, 14, $noreg :: (load 4)
ARMFrameLowering: Reserve emergency spill slot for large arguments Re-commit after revert in r300668. Changed getMaxFPOffset() to a more conservative heuristic instead of trying to be clever and missing for some exotic calling conventions. We need to reserve an emergency spill slot in cases with large argument types that could overflow immediate offsets for FP relative address calculations. rdar://31317893 Differential Revision: https://reviews.llvm.org/D31643 llvm-svn: 300761
2017-04-20 05:11:44 +08:00
# CHECK-NOT: t2LDRi12
name: func1
tracksRegLiveness: true
fixedStack:
- { id: 0, offset: 4044, size: 4, alignment: 4, isImmutable: true,
isAliased: false }
- { id: 1, offset: -12, size: 4056, alignment: 4, isImmutable: false,
isAliased: false }
body: |
bb.0:
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
$r0 = IMPLICIT_DEF
$r1 = IMPLICIT_DEF
$r2 = IMPLICIT_DEF
$r3 = IMPLICIT_DEF
$r4 = IMPLICIT_DEF
$r5 = IMPLICIT_DEF
$r6 = IMPLICIT_DEF
$r8 = IMPLICIT_DEF
$r9 = IMPLICIT_DEF
$r10 = IMPLICIT_DEF
$r11 = IMPLICIT_DEF
$r12 = IMPLICIT_DEF
$lr = IMPLICIT_DEF
ARMFrameLowering: Reserve emergency spill slot for large arguments Re-commit after revert in r300668. Changed getMaxFPOffset() to a more conservative heuristic instead of trying to be clever and missing for some exotic calling conventions. We need to reserve an emergency spill slot in cases with large argument types that could overflow immediate offsets for FP relative address calculations. rdar://31317893 Differential Revision: https://reviews.llvm.org/D31643 llvm-svn: 300761
2017-04-20 05:11:44 +08:00
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
$r11 = t2LDRi12 %fixed-stack.0, 0, 14, $noreg :: (load 4)
ARMFrameLowering: Reserve emergency spill slot for large arguments Re-commit after revert in r300668. Changed getMaxFPOffset() to a more conservative heuristic instead of trying to be clever and missing for some exotic calling conventions. We need to reserve an emergency spill slot in cases with large argument types that could overflow immediate offsets for FP relative address calculations. rdar://31317893 Differential Revision: https://reviews.llvm.org/D31643 llvm-svn: 300761
2017-04-20 05:11:44 +08:00
Followup on Proposal to move MIR physical register namespace to '$' sigil. Discussed here: http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html In preparation for adding support for named vregs we are changing the sigil for physical registers in MIR to '$' from '%'. This will prevent name clashes of named physical register with named vregs. llvm-svn: 323922
2018-02-01 06:04:26 +08:00
KILL $r0
KILL $r1
KILL $r2
KILL $r3
KILL $r4
KILL $r5
KILL $r6
KILL $r8
KILL $r9
KILL $r10
KILL $r11
KILL $r12
KILL $lr
ARMFrameLowering: Reserve emergency spill slot for large arguments Re-commit after revert in r300668. Changed getMaxFPOffset() to a more conservative heuristic instead of trying to be clever and missing for some exotic calling conventions. We need to reserve an emergency spill slot in cases with large argument types that could overflow immediate offsets for FP relative address calculations. rdar://31317893 Differential Revision: https://reviews.llvm.org/D31643 llvm-svn: 300761
2017-04-20 05:11:44 +08:00
...