1 ; RUN: llc -mtriple=thumbv6m-eabi -verify-machineinstrs %s -o - | \
2 ; RUN: FileCheck %s --check-prefix=CHECK --check-prefix=CHECKV6
3 ; RUN: llc -mtriple=thumbv6m-eabi -O=0 -verify-machineinstrs %s -o - | \
4 ; RUN: FileCheck %s --check-prefix=CHECK --check-prefix=CHECKV6
5 ; RUN: llc -mtriple=thumbv7a-eabi -mattr=-neon -verify-machineinstrs %s -o - | \
6 ; RUN: FileCheck %s --check-prefix=CHECK --check-prefix=CHECKV7
7 ; RUN: llc -mtriple=armv7a-eabi -mattr=-neon -verify-machineinstrs %s -o - | \
8 ; RUN: FileCheck %s --check-prefix=CHECK --check-prefix=CHECKV7
10 @d = external global [64 x i32]
11 @s = external global [64 x i32]
13 ; Function Attrs: nounwind
14 define void @t1() #0 {
17 ; CHECKV6: ldr [[LB:r[0-7]]],
18 ; CHECKV6-NEXT: ldr [[SB:r[0-7]]],
19 ; We use '[rl0-9]+' to allow 'r0'..'r12', 'lr'
20 ; CHECKV7: movt [[LB:[rl0-9]+]], :upper16:d
21 ; CHECKV7-NEXT: movt [[SB:[rl0-9]+]], :upper16:s
22 ; CHECK-NEXT: ldm{{(\.w)?}} [[LB]]!,
23 ; CHECK-NEXT: stm{{(\.w)?}} [[SB]]!,
24 ; Think of the monstrosity '{{\[}}[[LB]]]' as '[ [[LB]] ]' without the spaces.
25 ; CHECK-NEXT: ldrb{{(\.w)?}} {{.*}}, {{\[}}[[LB]]]
26 ; CHECK-NEXT: strb{{(\.w)?}} {{.*}}, {{\[}}[[SB]]]
27 tail call void @llvm.memcpy.p0i8.p0i8.i32(i8* bitcast ([64 x i32]* @s to i8*), i8* bitcast ([64 x i32]* @d to i8*), i32 17, i32 4, i1 false)
31 ; Function Attrs: nounwind
32 define void @t2() #0 {
35 ; CHECKV6: ldr [[LB:r[0-7]]],
36 ; CHECKV6-NEXT: ldr [[SB:r[0-7]]],
37 ; CHECKV7: movt [[LB:[rl0-9]+]], :upper16:d
38 ; CHECKV7-NEXT: movt [[SB:[rl0-9]+]], :upper16:s
39 ; CHECK-NEXT: ldm{{(\.w)?}} [[LB]]!,
40 ; CHECK-NEXT: stm{{(\.w)?}} [[SB]]!,
41 ; CHECK-NEXT: ldrh{{(\.w)?}} {{.*}}, {{\[}}[[LB]]]
42 ; CHECK-NEXT: ldrb{{(\.w)?}} {{.*}}, {{\[}}[[LB]], #2]
43 ; CHECK-NEXT: strb{{(\.w)?}} {{.*}}, {{\[}}[[SB]], #2]
44 ; CHECK-NEXT: strh{{(\.w)?}} {{.*}}, {{\[}}[[SB]]]
45 tail call void @llvm.memcpy.p0i8.p0i8.i32(i8* bitcast ([64 x i32]* @s to i8*), i8* bitcast ([64 x i32]* @d to i8*), i32 15, i32 4, i1 false)
50 %struct.T = type { i8, i64, i8 }
52 @copy = external global %struct.T, align 8
53 @etest = external global %struct.T, align 8
56 call void @llvm.memcpy.p0i8.p0i8.i32(
57 i8* getelementptr inbounds (%struct.T, %struct.T* @copy, i32 0, i32 0),
58 i8* getelementptr inbounds (%struct.T, %struct.T* @etest, i32 0, i32 0),
59 i32 24, i32 8, i1 false)
60 call void @llvm.memcpy.p0i8.p0i8.i32(
61 i8* getelementptr inbounds (%struct.T, %struct.T* @copy, i32 0, i32 0),
62 i8* getelementptr inbounds (%struct.T, %struct.T* @etest, i32 0, i32 0),
63 i32 24, i32 8, i1 false)
67 %struct.S = type { [12 x i32] }
70 define void @test3(%struct.S* %d, %struct.S* %s) #0 {
71 %1 = bitcast %struct.S* %d to i8*
72 %2 = bitcast %struct.S* %s to i8*
73 tail call void @llvm.memcpy.p0i8.p0i8.i32(i8* %1, i8* %2, i32 48, i32 4, i1 false)
74 ; 3 ldm/stm pairs in v6; 2 in v7
75 ; CHECK: ldm{{(\.w)?}} {{[rl0-9]+!?}}, [[REGLIST1:{.*}]]
76 ; CHECK: stm{{(\.w)?}} {{[rl0-9]+!?}}, [[REGLIST1]]
77 ; CHECK: ldm{{(\.w)?}} {{[rl0-9]+!?}}, [[REGLIST2:{.*}]]
78 ; CHECK: stm{{(\.w)?}} {{[rl0-9]+!?}}, [[REGLIST2]]
79 ; CHECKV6: ldm {{r[0-7]!?}}, [[REGLIST3:{.*}]]
80 ; CHECKV6: stm {{r[0-7]!?}}, [[REGLIST3]]
83 %arrayidx = getelementptr inbounds %struct.S, %struct.S* %s, i32 0, i32 0, i32 1
84 tail call void @g(i32* %arrayidx) #3
90 ; Set "no-frame-pointer-elim" to increase register pressure
91 attributes #0 = { "no-frame-pointer-elim"="true" }
93 ; Function Attrs: nounwind
94 declare void @llvm.memcpy.p0i8.p0i8.i32(i8* nocapture, i8* nocapture readonly, i32, i32, i1) #1