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| # RUN: llc -run-pass x86-fixup-bw-insts -mtriple=x86_64-- -o - %s | FileCheck %s
# Verify that we correctly deal with the flag edge cases when replacing
# copies by bigger copies, which is a pretty unusual transform.
--- |
target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
define i8 @test_movb_killed(i8 %a0) {
ret i8 %a0
}
define i8 @test_movb_impuse(i8 %a0) {
ret i8 %a0
}
define i8 @test_movb_impdef_gr64(i8 %a0) {
ret i8 %a0
}
define i8 @test_movb_impdef_gr32(i8 %a0) {
ret i8 %a0
}
define i8 @test_movb_impdef_gr16(i8 %a0) {
ret i8 %a0
}
define i16 @test_movw_impdef_gr32(i16 %a0) {
ret i16 %a0
}
define i16 @test_movw_impdef_gr64(i16 %a0) {
ret i16 %a0
}
...
---
name: test_movb_killed
tracksRegLiveness: true
liveins:
- { reg: '$edi' }
body: |
bb.0 (%ir-block.0):
liveins: $edi
; CHECK: $eax = MOV32rr undef $edi, implicit $dil
$al = MOV8rr killed $dil
RETQ killed $al
...
---
name: test_movb_impuse
tracksRegLiveness: true
liveins:
- { reg: '$edi' }
body: |
bb.0 (%ir-block.0):
liveins: $edi
; CHECK: $eax = MOV32rr undef $edi, implicit $dil
$al = MOV8rr $dil, implicit $edi
RETQ killed $al
...
---
name: test_movb_impdef_gr64
tracksRegLiveness: true
liveins:
- { reg: '$edi' }
body: |
bb.0 (%ir-block.0):
liveins: $edi
; CHECK: $eax = MOV32rr undef $edi, implicit $dil, implicit-def $rax
$al = MOV8rr $dil, implicit-def $rax
RETQ killed $al
...
---
name: test_movb_impdef_gr32
tracksRegLiveness: true
liveins:
- { reg: '$edi' }
body: |
bb.0 (%ir-block.0):
liveins: $edi
; CHECK: $eax = MOV32rr undef $edi, implicit $dil
$al = MOV8rr $dil, implicit-def $eax
RETQ killed $al
...
---
name: test_movb_impdef_gr16
tracksRegLiveness: true
liveins:
- { reg: '$edi' }
body: |
bb.0 (%ir-block.0):
liveins: $edi
; CHECK: $eax = MOV32rr undef $edi, implicit $dil
$al = MOV8rr $dil, implicit-def $ax
RETQ killed $al
...
---
name: test_movw_impdef_gr32
tracksRegLiveness: true
liveins:
- { reg: '$edi' }
body: |
bb.0 (%ir-block.0):
liveins: $edi
; CHECK: $eax = MOV32rr undef $edi, implicit $di
$ax = MOV16rr $di, implicit-def $eax
RETQ killed $ax
...
---
name: test_movw_impdef_gr64
tracksRegLiveness: true
liveins:
- { reg: '$edi' }
body: |
bb.0 (%ir-block.0):
liveins: $edi
; CHECK: $eax = MOV32rr undef $edi, implicit $di, implicit-def $rax
$ax = MOV16rr $di, implicit-def $rax
RETQ killed $ax
...
|