mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-10-22 12:33:33 +02:00
99 lines
2.6 KiB
Plaintext
99 lines
2.6 KiB
Plaintext
|
# RUN: llc -march=x86-64 -start-after prologepilog -stop-after prologepilog -o /dev/null %s | FileCheck %s
|
||
|
# This test ensures that the MIR parser parses callee saved information in the
|
||
|
# stack objects correctly.
|
||
|
|
||
|
--- |
|
||
|
|
||
|
define i32 @compute(i32 %a) {
|
||
|
body:
|
||
|
ret i32 %a
|
||
|
}
|
||
|
|
||
|
define i32 @func(i32 %a) {
|
||
|
entry:
|
||
|
%b = alloca i32
|
||
|
store i32 %a, i32* %b
|
||
|
br label %check
|
||
|
|
||
|
check:
|
||
|
%comp = icmp sle i32 %a, 10
|
||
|
br i1 %comp, label %loop, label %exit
|
||
|
|
||
|
loop:
|
||
|
%c = load i32, i32* %b
|
||
|
%d = call i32 @compute(i32 %c)
|
||
|
%e = sub i32 %d, 1
|
||
|
store i32 %e, i32* %b
|
||
|
br label %check
|
||
|
|
||
|
exit:
|
||
|
ret i32 0
|
||
|
}
|
||
|
|
||
|
...
|
||
|
---
|
||
|
name: compute
|
||
|
tracksRegLiveness: true
|
||
|
body:
|
||
|
- id: 0
|
||
|
name: body
|
||
|
liveins: [ '%edi' ]
|
||
|
instructions:
|
||
|
- '%eax = COPY killed %edi'
|
||
|
- 'RETQ killed %eax'
|
||
|
...
|
||
|
---
|
||
|
name: func
|
||
|
tracksRegLiveness: true
|
||
|
frameInfo:
|
||
|
stackSize: 24
|
||
|
maxAlignment: 4
|
||
|
adjustsStack: true
|
||
|
hasCalls: true
|
||
|
# CHECK: fixedStack:
|
||
|
# CHECK-NEXT: , callee-saved-register: '%rbx' }
|
||
|
fixedStack:
|
||
|
- { id: 0, type: spill-slot, offset: -16, size: 8, alignment: 16, callee-saved-register: '%rbx' }
|
||
|
# CHECK: stack:
|
||
|
# CHECK-NEXT: - { id: 0
|
||
|
# CHECK-NEXT: , callee-saved-register: '%edi' }
|
||
|
stack:
|
||
|
- { id: 0, name: b, offset: -20, size: 4, alignment: 4 }
|
||
|
- { id: 1, offset: -24, size: 4, alignment: 4, callee-saved-register: '%edi' }
|
||
|
body:
|
||
|
- id: 0
|
||
|
name: entry
|
||
|
successors: [ '%bb.1.check' ]
|
||
|
liveins: [ '%edi', '%rbx' ]
|
||
|
instructions:
|
||
|
- 'frame-setup PUSH64r killed %rbx, implicit-def %rsp, implicit %rsp'
|
||
|
- '%rsp = frame-setup SUB64ri8 %rsp, 16, implicit-def dead %eflags'
|
||
|
- '%ebx = COPY %edi'
|
||
|
- 'MOV32mr %rsp, 1, _, 12, _, %ebx'
|
||
|
- id: 1
|
||
|
name: check
|
||
|
successors: [ '%bb.2.loop', '%bb.3.exit' ]
|
||
|
liveins: [ '%ebx' ]
|
||
|
instructions:
|
||
|
- 'CMP32ri8 %ebx, 10, implicit-def %eflags'
|
||
|
- 'JG_1 %bb.3.exit, implicit killed %eflags'
|
||
|
- 'JMP_1 %bb.2.loop'
|
||
|
- id: 2
|
||
|
name: loop
|
||
|
successors: [ '%bb.1.check' ]
|
||
|
liveins: [ '%ebx' ]
|
||
|
instructions:
|
||
|
- '%edi = MOV32rm %rsp, 1, _, 12, _'
|
||
|
- 'CALL64pcrel32 @compute, csr_64, implicit %rsp, implicit %edi, implicit-def %rsp, implicit-def %eax'
|
||
|
- '%eax = DEC32r killed %eax, implicit-def dead %eflags'
|
||
|
- 'MOV32mr %rsp, 1, _, 12, _, killed %eax'
|
||
|
- 'JMP_1 %bb.1.check'
|
||
|
- id: 3
|
||
|
name: exit
|
||
|
instructions:
|
||
|
- '%eax = MOV32r0 implicit-def dead %eflags'
|
||
|
- '%rsp = ADD64ri8 %rsp, 16, implicit-def dead %eflags'
|
||
|
- '%rbx = POP64r implicit-def %rsp, implicit %rsp'
|
||
|
- 'RETQ %eax'
|
||
|
...
|