1 # RUN: llc -mtriple=arm-none-eabi -run-pass=arm-cp-islands %s -o - | FileCheck %s
3 # This checks alignment of a new block when a big basic block is split up.
7 source_filename = "<stdin>"
8 target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64"
9 target triple = "arm-arm--eabi"
11 declare i32 @llvm.arm.space(i32, i32) #0
13 define dso_local i32 @ARM(ptr %LL, i32 %A.coerce) local_unnamed_addr #1 {
15 %S = alloca half, align 2
16 %tmp.0.extract.trunc = trunc i32 %A.coerce to i16
17 %0 = bitcast i16 %tmp.0.extract.trunc to half
18 store volatile half 0xH3C00, ptr %S, align 2
19 store volatile i64 4242424242424242, ptr %LL, align 8
20 %1 = call i32 @llvm.arm.space(i32 8920, i32 undef)
21 %S.0.S.0.570 = load volatile half, ptr %S, align 2
22 %add298 = fadd half %S.0.S.0.570, 0xH2E66
23 store volatile half %add298, ptr %S, align 2
24 %2 = call i32 @llvm.arm.space(i32 1350, i32 undef)
25 %3 = bitcast half %add298 to i16
26 %tmp343.0.insert.ext = zext i16 %3 to i32
27 ret i32 %tmp343.0.insert.ext
30 attributes #0 = { nounwind }
31 attributes #1 = { minsize nounwind optsize "target-features"="+crc,+crypto,+dsp,+fp-armv8,+fullfp16,+hwdiv,+hwdiv-arm,+neon,+ras,+strict-align,-thumb-mode" }
37 tracksRegLiveness: true
45 - { id: 0, name: S, offset: -2, size: 2, alignment: 2, stack-id: default, local-offset: -2 }
57 #CHECK: B %[[BB4:bb.[0-9]]]
58 #CHECK: bb.{{.}} (align 4):
60 #CHECK: CONSTPOOL_ENTRY {{.}}, %const.{{.}}, 4
61 #CHECK: bb.{{.}} (align 4):
63 #CHECK: CONSTPOOL_ENTRY {{.}}, %const.{{.}}, 4
64 #CHECK: bb.{{.}} (align 2):
66 #CHECK: CONSTPOOL_ENTRY {{.}}, %const.{{.}}, 2
67 #CHECK: [[BB4]].entry (align 4):
73 $sp = frame-setup SUBri $sp, 4, 14, $noreg, $noreg
74 frame-setup CFI_INSTRUCTION def_cfa_offset 4
75 renamable $s0 = FCONSTH 112, 14, $noreg
76 renamable $r1 = LDRcp %const.0, 0, 14, $noreg :: (load (s32) from constant-pool)
77 renamable $r2 = LDRcp %const.1, 0, 14, $noreg :: (load (s32) from constant-pool)
78 VSTRH killed renamable $s0, $sp, 1, 14, $noreg :: (volatile store (s16) into %ir.S)
79 STRi12 killed renamable $r2, renamable $r0, 4, 14, $noreg :: (volatile store (s32) into %ir.LL + 4)
80 renamable $s0 = VLDRH %const.2, 0, 14, $noreg :: (load (s16) from constant-pool)
81 STRi12 killed renamable $r1, killed renamable $r0, 0, 14, $noreg :: (volatile store (s32) into %ir.LL, align 8)
82 dead renamable $r0 = SPACE 8920, undef renamable $r0
83 renamable $s2 = VLDRH $sp, 1, 14, $noreg :: (volatile dereferenceable load (s16) from %ir.S)
84 renamable $s0 = VADDH killed renamable $s2, killed renamable $s0, 14, $noreg
85 VSTRH renamable $s0, $sp, 1, 14, $noreg :: (volatile store (s16) into %ir.S)
86 renamable $r0 = VMOVRH killed renamable $s0, 14, $noreg
87 dead renamable $r1 = SPACE 1350, undef renamable $r0
88 $sp = ADDri $sp, 4, 14, $noreg, $noreg
89 MOVPCLR 14, $noreg, implicit killed $r0