forked from OSchip/llvm-project
320 lines
6.7 KiB
ArmAsm
320 lines
6.7 KiB
ArmAsm
# RUN: llvm-mc -filetype=obj -triple=mipsel-unknown-nacl %s \
|
|
# RUN: | llvm-objdump -disassemble -no-show-raw-insn - | FileCheck %s
|
|
|
|
# This test tests that address-masking sandboxing is added when given assembly
|
|
# input.
|
|
|
|
|
|
# Test that address-masking sandboxing is added before indirect branches and
|
|
# returns.
|
|
|
|
.align 4
|
|
test1:
|
|
.set noreorder
|
|
|
|
jr $a0
|
|
nop
|
|
jr $ra
|
|
nop
|
|
|
|
# CHECK-LABEL: test1:
|
|
|
|
# CHECK: and $4, $4, $14
|
|
# CHECK-NEXT: jr $4
|
|
|
|
# Check that additional nop is inserted, to align mask and jr to the next
|
|
# bundle.
|
|
|
|
# CHECK-NEXT: nop
|
|
# CHECK-NEXT: nop
|
|
|
|
# CHECK: and $ra, $ra, $14
|
|
# CHECK-NEXT: jr $ra
|
|
|
|
|
|
|
|
# Test that address-masking sandboxing is added before load instructions.
|
|
|
|
.align 4
|
|
test2:
|
|
.set noreorder
|
|
|
|
lb $4, 0($1)
|
|
nop
|
|
lbu $4, 0($2)
|
|
lh $4, 0($3)
|
|
lhu $1, 0($4)
|
|
lw $4, 0($5)
|
|
lwc1 $f0, 0($6)
|
|
ldc1 $f2, 0($7)
|
|
ll $4, 0($8)
|
|
lwl $4, 0($9)
|
|
lwr $4, 0($10)
|
|
|
|
lw $4, 0($sp)
|
|
lw $4, 0($t8)
|
|
|
|
# CHECK-LABEL: test2:
|
|
|
|
# CHECK: and $1, $1, $15
|
|
# CHECK-NEXT: lb $4, 0($1)
|
|
|
|
# Check that additional nop is inserted, to align mask and load to the next
|
|
# bundle.
|
|
|
|
# CHECK: nop
|
|
# CHECK: nop
|
|
|
|
# CHECK: and $2, $2, $15
|
|
# CHECK-NEXT: lbu $4, 0($2)
|
|
|
|
# CHECK: and $3, $3, $15
|
|
# CHECK-NEXT: lh $4, 0($3)
|
|
|
|
# CHECK: and $4, $4, $15
|
|
# CHECK-NEXT: lhu $1, 0($4)
|
|
|
|
# CHECK: and $5, $5, $15
|
|
# CHECK-NEXT: lw $4, 0($5)
|
|
|
|
# CHECK: and $6, $6, $15
|
|
# CHECK-NEXT: lwc1 $f0, 0($6)
|
|
|
|
# CHECK: and $7, $7, $15
|
|
# CHECK-NEXT: ldc1 $f2, 0($7)
|
|
|
|
# CHECK: and $8, $8, $15
|
|
# CHECK-NEXT: ll $4, 0($8)
|
|
|
|
# CHECK: and $9, $9, $15
|
|
# CHECK-NEXT: lwl $4, 0($9)
|
|
|
|
# CHECK: and $10, $10, $15
|
|
# CHECK-NEXT: lwr $4, 0($10)
|
|
|
|
|
|
# Check that loads where base register is $sp or $t8 (thread pointer register)
|
|
# are not masked.
|
|
|
|
# CHECK-NOT: and
|
|
# CHECK: lw $4, 0($sp)
|
|
# CHECK-NOT: and
|
|
# CHECK: lw $4, 0($24)
|
|
|
|
|
|
|
|
# Test that address-masking sandboxing is added before store instructions.
|
|
|
|
.align 4
|
|
test3:
|
|
.set noreorder
|
|
|
|
sb $4, 0($1)
|
|
nop
|
|
sh $4, 0($2)
|
|
sw $4, 0($3)
|
|
swc1 $f0, 0($4)
|
|
sdc1 $f2, 0($5)
|
|
swl $4, 0($6)
|
|
swr $4, 0($7)
|
|
sc $4, 0($8)
|
|
|
|
sw $4, 0($sp)
|
|
sw $4, 0($t8)
|
|
|
|
# CHECK-LABEL: test3:
|
|
|
|
# CHECK: and $1, $1, $15
|
|
# CHECK-NEXT: sb $4, 0($1)
|
|
|
|
# Check that additional nop is inserted, to align mask and store to the next
|
|
# bundle.
|
|
|
|
# CHECK: nop
|
|
# CHECK: nop
|
|
|
|
# CHECK: and $2, $2, $15
|
|
# CHECK-NEXT: sh $4, 0($2)
|
|
|
|
# CHECK: and $3, $3, $15
|
|
# CHECK-NEXT: sw $4, 0($3)
|
|
|
|
# CHECK: and $4, $4, $15
|
|
# CHECK-NEXT: swc1 $f0, 0($4)
|
|
|
|
# CHECK: and $5, $5, $15
|
|
# CHECK-NEXT: sdc1 $f2, 0($5)
|
|
|
|
# CHECK: and $6, $6, $15
|
|
# CHECK-NEXT: swl $4, 0($6)
|
|
|
|
# CHECK: and $7, $7, $15
|
|
# CHECK-NEXT: swr $4, 0($7)
|
|
|
|
# CHECK: and $8, $8, $15
|
|
# CHECK-NEXT: sc $4, 0($8)
|
|
|
|
|
|
# Check that stores where base register is $sp or $t8 (thread pointer register)
|
|
# are not masked.
|
|
|
|
# CHECK-NOT: and
|
|
# CHECK: sw $4, 0($sp)
|
|
# CHECK-NOT: and
|
|
# CHECK: sw $4, 0($24)
|
|
|
|
|
|
|
|
# Test that address-masking sandboxing is added after instructions that change
|
|
# stack pointer.
|
|
|
|
.align 4
|
|
test4:
|
|
.set noreorder
|
|
|
|
addiu $sp, $sp, 24
|
|
nop
|
|
addu $sp, $sp, $1
|
|
lw $sp, 0($2)
|
|
lw $sp, 123($sp)
|
|
sw $sp, 123($sp)
|
|
|
|
# CHECK-LABEL: test4:
|
|
|
|
# CHECK: addiu $sp, $sp, 24
|
|
# CHECK-NEXT: and $sp, $sp, $15
|
|
|
|
# Check that additional nop is inserted, to align instruction and mask to the
|
|
# next bundle.
|
|
|
|
# CHECK: nop
|
|
# CHECK: nop
|
|
|
|
# CHECK: addu $sp, $sp, $1
|
|
# CHECK-NEXT: and $sp, $sp, $15
|
|
|
|
# Since we next check sandboxing sequence which consists of 3 instructions,
|
|
# check that 2 additional nops are inserted, to align it to the next bundle.
|
|
|
|
# CHECK: nop
|
|
# CHECK: nop
|
|
|
|
|
|
# Check that for instructions that change stack-pointer and load from memory
|
|
# masks are added before and after the instruction.
|
|
|
|
# CHECK: and $2, $2, $15
|
|
# CHECK-NEXT: lw $sp, 0($2)
|
|
# CHECK-NEXT: and $sp, $sp, $15
|
|
|
|
# For loads where $sp is destination and base, check that mask is added after
|
|
# but not before.
|
|
|
|
# CHECK-NOT: and
|
|
# CHECK: lw $sp, 123($sp)
|
|
# CHECK-NEXT: and $sp, $sp, $15
|
|
|
|
# For stores where $sp is destination and base, check that mask is added neither
|
|
# before nor after.
|
|
|
|
# CHECK-NOT: and
|
|
# CHECK: sw $sp, 123($sp)
|
|
# CHECK-NOT: and
|
|
|
|
|
|
|
|
# Test that call + branch delay is aligned at bundle end. Test that mask is
|
|
# added before indirect calls.
|
|
|
|
.align 4
|
|
test5:
|
|
.set noreorder
|
|
|
|
jal func1
|
|
addiu $4, $zero, 1
|
|
|
|
nop
|
|
bal func2
|
|
addiu $4, $zero, 2
|
|
|
|
nop
|
|
nop
|
|
bltzal $t1, func3
|
|
addiu $4, $zero, 3
|
|
|
|
nop
|
|
nop
|
|
nop
|
|
bgezal $t2, func4
|
|
addiu $4, $zero, 4
|
|
|
|
jalr $t9
|
|
addiu $4, $zero, 5
|
|
|
|
|
|
# CHECK: nop
|
|
# CHECK-NEXT: nop
|
|
# CHECK-LABEL: test5:
|
|
# CHECK-NEXT: jal
|
|
# CHECK-NEXT: addiu $4, $zero, 1
|
|
|
|
# CHECK-NEXT: nop
|
|
# CHECK-NEXT: nop
|
|
# CHECK-NEXT: bal
|
|
# CHECK-NEXT: addiu $4, $zero, 2
|
|
|
|
# CHECK-NEXT: nop
|
|
# CHECK-NEXT: nop
|
|
# CHECK-NEXT: bltzal
|
|
# CHECK-NEXT: addiu $4, $zero, 3
|
|
|
|
# CHECK-NEXT: nop
|
|
# CHECK-NEXT: nop
|
|
# CHECK-NEXT: nop
|
|
# CHECK-NEXT: nop
|
|
|
|
# CHECK-NEXT: nop
|
|
# CHECK-NEXT: nop
|
|
# CHECK-NEXT: bgezal
|
|
# CHECK-NEXT: addiu $4, $zero, 4
|
|
|
|
# CHECK-NEXT: nop
|
|
# CHECK-NEXT: and $25, $25, $14
|
|
# CHECK-NEXT: jalr $25
|
|
# CHECK-NEXT: addiu $4, $zero, 5
|
|
|
|
|
|
|
|
# Test that we can put non-dangerous loads and stores in branch delay slot.
|
|
|
|
.align 4
|
|
test6:
|
|
.set noreorder
|
|
|
|
jal func1
|
|
sw $4, 0($sp)
|
|
|
|
bal func2
|
|
lw $5, 0($t8)
|
|
|
|
jalr $t9
|
|
sw $sp, 0($sp)
|
|
|
|
|
|
|
|
# CHECK: nop
|
|
# CHECK-NEXT: nop
|
|
# CHECK-LABEL: test6:
|
|
# CHECK-NEXT: jal
|
|
# CHECK-NEXT: sw $4, 0($sp)
|
|
|
|
# CHECK-NEXT: nop
|
|
# CHECK-NEXT: nop
|
|
# CHECK-NEXT: bal
|
|
# CHECK-NEXT: lw $5, 0($24)
|
|
|
|
# CHECK-NEXT: nop
|
|
# CHECK-NEXT: and $25, $25, $14
|
|
# CHECK-NEXT: jalr
|
|
# CHECK-NEXT: sw $sp, 0($sp)
|