maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity
llvm-project/lld/test/ELF/ppc64-split-stack-adjust-si...

Ignoring revisions in .git-blame-ignore-revs. Click here to bypass and see the normal blame view.

109 lines
3.1 KiB
ArmAsm
Raw Normal View History

Reland "[PPC64] Add split - stack support." Recommitting https://reviews.llvm.org/rL344544 after fixing undefined behavior from left-shifting a negative value. Original commit message: This support is slightly different then the X86_64 implementation in that calls to __morestack don't need to get rewritten to calls to __moresatck_non_split when a split-stack caller calls a non-split-stack callee. Instead the size of the stack frame requested by the caller is adjusted prior to the call to __morestack. The size the stack-frame will be adjusted by is tune-able through a new --split-stack-adjust-size option. llvm-svn: 344622
2018-10-17 01:13:01 +08:00
# REQUIRES: ppc
# RUN: llvm-mc -filetype=obj -triple=powerpc64le-unknown-linux %s -o %t1.o
# RUN: llvm-mc -filetype=obj -triple=powerpc64le-unknown-linux %p/Inputs/ppc64-no-split-stack.s -o %t2.o
# RUN: ld.lld %t1.o %t2.o -o %t --defsym __morestack=0x10010000 -split-stack-adjust-size 32768
# RUN: llvm-objdump -d %t | FileCheck %s
# RUN: ld.lld %t1.o %t2.o -o %t --defsym __morestack=0x10010000 -split-stack-adjust-size 4096
[test] lld/test/: change llvm-objdump single-dash long options to double-dash options
2020-03-16 08:47:44 +08:00
# RUN: llvm-objdump -d %t | FileCheck %s --check-prefix=SMALL
Reland "[PPC64] Add split - stack support." Recommitting https://reviews.llvm.org/rL344544 after fixing undefined behavior from left-shifting a negative value. Original commit message: This support is slightly different then the X86_64 implementation in that calls to __morestack don't need to get rewritten to calls to __moresatck_non_split when a split-stack caller calls a non-split-stack callee. Instead the size of the stack frame requested by the caller is adjusted prior to the call to __morestack. The size the stack-frame will be adjusted by is tune-able through a new --split-stack-adjust-size option. llvm-svn: 344622
2018-10-17 01:13:01 +08:00
# RUN: ld.lld %t1.o %t2.o -o %t --defsym __morestack=0x10010000 -split-stack-adjust-size 0
[test] lld/test/: change llvm-objdump single-dash long options to double-dash options
2020-03-16 08:47:44 +08:00
# RUN: llvm-objdump -d %t | FileCheck %s --check-prefix=ZERO
[ELF][test] Change -o %t to -o /dev/null if the output is not needed
2020-02-13 13:48:45 +08:00
# RUN: not ld.lld %t1.o %t2.o -o /dev/null -split-stack-adjust-size -1 2>&1 | FileCheck %s -check-prefix=ERR
[LLD][ELF] - Add a check for --split-stack-adjust-size error message. NFCI. "--split-stack-adjust-size: size must be >= 0" message was never tested. llvm-svn: 347550
2018-11-26 20:36:16 +08:00
# ERR: error: --split-stack-adjust-size: size must be >= 0
Reland "[PPC64] Add split - stack support." Recommitting https://reviews.llvm.org/rL344544 after fixing undefined behavior from left-shifting a negative value. Original commit message: This support is slightly different then the X86_64 implementation in that calls to __morestack don't need to get rewritten to calls to __moresatck_non_split when a split-stack caller calls a non-split-stack callee. Instead the size of the stack frame requested by the caller is adjusted prior to the call to __morestack. The size the stack-frame will be adjusted by is tune-able through a new --split-stack-adjust-size option. llvm-svn: 344622
2018-10-17 01:13:01 +08:00
# RUN: llvm-mc -filetype=obj -triple=powerpc64-unknown-linux %s -o %t1.o
# RUN: llvm-mc -filetype=obj -triple=powerpc64-unknown-linux %p/Inputs/ppc64-no-split-stack.s -o %t2.o
# RUN: ld.lld %t1.o %t2.o -o %t --defsym __morestack=0x10010000 -split-stack-adjust-size 32768
# RUN: llvm-objdump -d %t | FileCheck %s
# RUN: ld.lld %t1.o %t2.o -o %t --defsym __morestack=0x10010000 -split-stack-adjust-size 4096
[test] lld/test/: change llvm-objdump single-dash long options to double-dash options
2020-03-16 08:47:44 +08:00
# RUN: llvm-objdump -d %t | FileCheck %s --check-prefix=SMALL
Reland "[PPC64] Add split - stack support." Recommitting https://reviews.llvm.org/rL344544 after fixing undefined behavior from left-shifting a negative value. Original commit message: This support is slightly different then the X86_64 implementation in that calls to __morestack don't need to get rewritten to calls to __moresatck_non_split when a split-stack caller calls a non-split-stack callee. Instead the size of the stack frame requested by the caller is adjusted prior to the call to __morestack. The size the stack-frame will be adjusted by is tune-able through a new --split-stack-adjust-size option. llvm-svn: 344622
2018-10-17 01:13:01 +08:00
# RUN: ld.lld %t1.o %t2.o -o %t --defsym __morestack=0x10010000 -split-stack-adjust-size 0
[test] lld/test/: change llvm-objdump single-dash long options to double-dash options
2020-03-16 08:47:44 +08:00
# RUN: llvm-objdump -d %t | FileCheck %s --check-prefix=ZERO
Reland "[PPC64] Add split - stack support." Recommitting https://reviews.llvm.org/rL344544 after fixing undefined behavior from left-shifting a negative value. Original commit message: This support is slightly different then the X86_64 implementation in that calls to __morestack don't need to get rewritten to calls to __moresatck_non_split when a split-stack caller calls a non-split-stack callee. Instead the size of the stack frame requested by the caller is adjusted prior to the call to __morestack. The size the stack-frame will be adjusted by is tune-able through a new --split-stack-adjust-size option. llvm-svn: 344622
2018-10-17 01:13:01 +08:00
.p2align 2
.global caller
.type caller, @function
caller:
.Lcaller_gep:
addis 2, 12, .TOC.-.Lcaller_gep@ha
addi 2, 2, .TOC.-.Lcaller_gep@l
.localentry caller, .-caller
ld 0, -0x7040(13)
addi 12, 1, -32
nop
cmpld 7, 12, 0
blt- 7, .Lcaller_alloc_more
.Lcaller_body:
mflr 0
std 0, 16(1)
stdu 1, -32(1)
bl nss_callee
addi 1, 1, 32
ld 0, 16(1)
mtlr 0
blr
.Lcaller_alloc_more:
mflr 0
std 0, 16(1)
bl __morestack
ld 0, 16(1)
mtlr 0
blr
b .Lcaller_body
.size caller, .-caller
# CHECK-LABEL: caller
# CHECK: ld 0, -28736(13)
# CHECK-NEXT: addis 12, 1, -1
# CHECK-NEXT: addi 12, 12, 32736
# CHECK-NEXT: cmpld 7, 12, 0
[PPCInstPrinter] Print conditional branches as `bt 2, $target` instead of `bt 2, .+$imm` Follow-up of D76591. Reviewed By: #powerpc, sfertile Differential Revision: https://reviews.llvm.org/D76907
2020-03-27 14:40:23 +08:00
# CHECK-NEXT: bt- 28, 0x10010204
Reland "[PPC64] Add split - stack support." Recommitting https://reviews.llvm.org/rL344544 after fixing undefined behavior from left-shifting a negative value. Original commit message: This support is slightly different then the X86_64 implementation in that calls to __morestack don't need to get rewritten to calls to __moresatck_non_split when a split-stack caller calls a non-split-stack callee. Instead the size of the stack frame requested by the caller is adjusted prior to the call to __morestack. The size the stack-frame will be adjusted by is tune-able through a new --split-stack-adjust-size option. llvm-svn: 344622
2018-10-17 01:13:01 +08:00
# SMALL-LABEL: caller
# SMALL: ld 0, -28736(13)
# SMALL-NEXT: addi 12, 1, -4128
# SMALL-NEXT: nop
# SMALL-NEXT: cmpld 7, 12, 0
[PPCInstPrinter] Print conditional branches as `bt 2, $target` instead of `bt 2, .+$imm` Follow-up of D76591. Reviewed By: #powerpc, sfertile Differential Revision: https://reviews.llvm.org/D76907
2020-03-27 14:40:23 +08:00
# SMALL-NEXT: bt- 28, 0x10010204
Reland "[PPC64] Add split - stack support." Recommitting https://reviews.llvm.org/rL344544 after fixing undefined behavior from left-shifting a negative value. Original commit message: This support is slightly different then the X86_64 implementation in that calls to __morestack don't need to get rewritten to calls to __moresatck_non_split when a split-stack caller calls a non-split-stack callee. Instead the size of the stack frame requested by the caller is adjusted prior to the call to __morestack. The size the stack-frame will be adjusted by is tune-able through a new --split-stack-adjust-size option. llvm-svn: 344622
2018-10-17 01:13:01 +08:00
# ZERO-LABEL: caller
# ZERO: ld 0, -28736(13)
# ZERO-NEXT: addi 12, 1, -32
# ZERO-NEXT: nop
# ZERO-NEXT: cmpld 7, 12, 0
[PPCInstPrinter] Print conditional branches as `bt 2, $target` instead of `bt 2, .+$imm` Follow-up of D76591. Reviewed By: #powerpc, sfertile Differential Revision: https://reviews.llvm.org/D76907
2020-03-27 14:40:23 +08:00
# ZERO-NEXT: bt- 28, 0x10010204
Reland "[PPC64] Add split - stack support." Recommitting https://reviews.llvm.org/rL344544 after fixing undefined behavior from left-shifting a negative value. Original commit message: This support is slightly different then the X86_64 implementation in that calls to __morestack don't need to get rewritten to calls to __moresatck_non_split when a split-stack caller calls a non-split-stack callee. Instead the size of the stack frame requested by the caller is adjusted prior to the call to __morestack. The size the stack-frame will be adjusted by is tune-able through a new --split-stack-adjust-size option. llvm-svn: 344622
2018-10-17 01:13:01 +08:00
.p2align 2
.global main
.type main, @function
main:
.Lmain_gep:
addis 2,12,.TOC.-.Lmain_gep@ha
addi 2,2,.TOC.-.Lmain_gep@l
.localentry main,.-main
ld 0,-0x7040(13)
addi 12,1,-32
nop
cmpld 7,12,0
blt- 7, .Lmain_morestack
.Lmain_body:
mflr 0
std 0, 16(1)
stdu 1, -32(1)
bl caller
addi 1, 1, 32
ld 0, 16(1)
mtlr 0
blr
.Lmain_morestack:
mflr 0
std 0, 16(1)
bl __morestack
ld 0, 16(1)
mtlr 0
blr
b .Lmain_body
.size main,.-main
.section .note.GNU-split-stack,"",@progbits