1 # RUN: llc -run-pass x86-fixup-bw-insts -mtriple=x86_64-- -o - %s | FileCheck %s
3 # Verify that we correctly deal with the flag edge cases when replacing
4 # copies by bigger copies, which is a pretty unusual transform.
7 target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
9 define i8 @test_movb_killed(i8 %a0) {
13 define i8 @test_movb_impuse(i8 %a0) {
17 define i8 @test_movb_impdef_gr64(i8 %a0) {
21 define i8 @test_movb_impdef_gr32(i8 %a0) {
25 define i8 @test_movb_impdef_gr16(i8 %a0) {
29 define i16 @test_movw_impdef_gr32(i16 %a0) {
33 define i16 @test_movw_impdef_gr64(i16 %a0) {
40 name: test_movb_killed
41 tracksRegLiveness: true
48 ; CHECK: %eax = MOV32rr undef %edi, implicit %dil
49 %al = MOV8rr killed %dil
55 name: test_movb_impuse
56 tracksRegLiveness: true
63 ; CHECK: %eax = MOV32rr undef %edi, implicit %dil
64 %al = MOV8rr %dil, implicit %edi
70 name: test_movb_impdef_gr64
71 tracksRegLiveness: true
78 ; CHECK: %eax = MOV32rr undef %edi, implicit %dil, implicit-def %rax
79 %al = MOV8rr %dil, implicit-def %rax
85 name: test_movb_impdef_gr32
86 tracksRegLiveness: true
93 ; CHECK: %eax = MOV32rr undef %edi, implicit %dil
94 %al = MOV8rr %dil, implicit-def %eax
100 name: test_movb_impdef_gr16
101 tracksRegLiveness: true
108 ; CHECK: %eax = MOV32rr undef %edi, implicit %dil
109 %al = MOV8rr %dil, implicit-def %ax
115 name: test_movw_impdef_gr32
116 tracksRegLiveness: true
123 ; CHECK: %eax = MOV32rr undef %edi, implicit %di
124 %ax = MOV16rr %di, implicit-def %eax
130 name: test_movw_impdef_gr64
131 tracksRegLiveness: true
138 ; CHECK: %eax = MOV32rr undef %edi, implicit %di, implicit-def %rax
139 %ax = MOV16rr %di, implicit-def %rax