1 # RUN: llc -mtriple=aarch64 -o - %s \
2 # RUN: -run-pass dead-mi-elimination | FileCheck %s
4 @c = internal unnamed_addr global [3 x i8] zeroinitializer, align 4
5 @d = common dso_local local_unnamed_addr global i32 0, align 4
7 define dso_local i32 @main() local_unnamed_addr {
8 %scevgep = getelementptr i8, i8* getelementptr inbounds ([3 x i8], [3 x i8]* @c, i64 0, i64 1), i64 0
14 tracksRegLiveness: true
16 - { id: 0, class: gpr64common, preferred-register: '' }
17 - { id: 1, class: gpr64common, preferred-register: '' }
18 - { id: 2, class: gpr64, preferred-register: '' }
19 - { id: 3, class: gpr64common, preferred-register: '' }
20 - { id: 4, class: gpr32, preferred-register: '' }
21 - { id: 5, class: gpr32all, preferred-register: '' }
22 - { id: 6, class: gpr64common, preferred-register: '' }
25 successors: %bb.4(0x30000000), %bb.5(0x50000000)
27 %0:gpr64common = MOVaddr target-flags(aarch64-page) @c, target-flags(aarch64-pageoff, aarch64-nc) @c
32 successors: %bb.3(0x04000000), %bb.2(0x7c000000)
34 %1:gpr64common = MOVaddr target-flags(aarch64-page) @c, target-flags(aarch64-pageoff, aarch64-nc) @c
35 %2:gpr64 = SUBSXri %1, 2, 0, implicit-def $nzcv
36 Bcc 0, %bb.3, implicit $nzcv
40 successors: %bb.1(0x80000000)
41 %3:gpr64common = ADDXrr %6, %2
42 %4:gpr32 = LDRBBui killed %3, 1 :: (load (s8) from %ir.scevgep)
47 ADJCALLSTACKDOWN 0, 0, implicit-def dead $sp, implicit $sp
48 $x0 = MOVaddr target-flags(aarch64-page) @c, target-flags(aarch64-pageoff, aarch64-nc) @c
49 ADJCALLSTACKUP 0, 0, implicit-def dead $sp, implicit $sp
50 RET_ReallyLR implicit $w0
53 successors: %bb.5(0x80000000)
56 successors: %bb.1(0x80000000)
58 ; CHECK-NOT: %6:gpr64common = MOVaddr target-flags(aarch64-page) @c, target-flags(aarch64-pageoff, aarch64-nc) @c
59 %6:gpr64common = MOVaddr target-flags(aarch64-page) @c, target-flags(aarch64-pageoff, aarch64-nc) @c