1 ; RUN: llc < %s -mtriple=armv7-apple-ios6.0 | FileCheck %s 2 ; RUN: llc < %s -mtriple=thumbv7-apple-ios6.0 | FileCheck %s 3 ; RUN: llc < %s -mtriple=armv7-unknown-nacl-gnueabi | FileCheck %s -check-prefix=NACL 4 ; RUN: llc < %s -mtriple=armv5-none-linux-gnueabi | FileCheck %s -check-prefix=NOMOVT 5 6 ; NOMOVT-NOT: movt 7 8 ; rdar://9877866 9 %struct.SmallStruct = type { i32, [8 x i32], [37 x i8] } 10 %struct.LargeStruct = type { i32, [1001 x i8], [300 x i32] } 11 12 define i32 @f() nounwind ssp { 13 entry: 14 ; CHECK-LABEL: f: 15 ; CHECK: ldr 16 ; CHECK: str 17 ; CHECK-NOT:bne 18 %st = alloca %struct.SmallStruct, align 4 19 %call = call i32 @e1(%struct.SmallStruct* byval %st) 20 ret i32 0 21 } 22 23 ; Generate a loop for large struct byval 24 define i32 @g() nounwind ssp { 25 entry: 26 ; CHECK-LABEL: g: 27 ; CHECK: ldr 28 ; CHECK: sub 29 ; CHECK: str 30 ; CHECK: bne 31 ; NACL-LABEL: g: 32 ; Ensure that use movw instead of constpool for the loop trip count. But don't 33 ; match the __stack_chk_guard movw 34 ; NACL: movw r{{[1-9]}}, # 35 ; NACL: ldr 36 ; NACL: sub 37 ; NACL: str 38 ; NACL: bne 39 %st = alloca %struct.LargeStruct, align 4 40 %call = call i32 @e2(%struct.LargeStruct* byval %st) 41 ret i32 0 42 } 43 44 ; Generate a loop using NEON instructions 45 define i32 @h() nounwind ssp { 46 entry: 47 ; CHECK-LABEL: h: 48 ; CHECK: vld1 49 ; CHECK: sub 50 ; CHECK: vst1 51 ; CHECK: bne 52 ; NACL: movw r{{[1-9]}}, # 53 ; NACL: vld1 54 ; NACL: sub 55 ; NACL: vst1 56 ; NACL: bne 57 %st = alloca %struct.LargeStruct, align 16 58 %call = call i32 @e3(%struct.LargeStruct* byval align 16 %st) 59 ret i32 0 60 } 61 62 declare i32 @e1(%struct.SmallStruct* nocapture byval %in) nounwind 63 declare i32 @e2(%struct.LargeStruct* nocapture byval %in) nounwind 64 declare i32 @e3(%struct.LargeStruct* nocapture byval align 16 %in) nounwind 65 66 ; rdar://12442472 67 ; We can't do tail call since address of s is passed to the callee and part of 68 ; s is in caller's local frame. 69 define void @f3(%struct.SmallStruct* nocapture byval %s) nounwind optsize { 70 ; CHECK-LABEL: f3 71 ; CHECK: bl _consumestruct 72 entry: 73 %0 = bitcast %struct.SmallStruct* %s to i8* 74 tail call void @consumestruct(i8* %0, i32 80) optsize 75 ret void 76 } 77 78 define void @f4(%struct.SmallStruct* nocapture byval %s) nounwind optsize { 79 ; CHECK-LABEL: f4 80 ; CHECK: bl _consumestruct 81 entry: 82 %addr = getelementptr inbounds %struct.SmallStruct, %struct.SmallStruct* %s, i32 0, i32 0 83 %0 = bitcast i32* %addr to i8* 84 tail call void @consumestruct(i8* %0, i32 80) optsize 85 ret void 86 } 87 88 ; We can do tail call here since s is in the incoming argument area. 89 define void @f5(i32 %a, i32 %b, i32 %c, i32 %d, %struct.SmallStruct* nocapture byval %s) nounwind optsize { 90 ; CHECK-LABEL: f5 91 ; CHECK: b{{(\.w)?}} _consumestruct 92 entry: 93 %0 = bitcast %struct.SmallStruct* %s to i8* 94 tail call void @consumestruct(i8* %0, i32 80) optsize 95 ret void 96 } 97 98 define void @f6(i32 %a, i32 %b, i32 %c, i32 %d, %struct.SmallStruct* nocapture byval %s) nounwind optsize { 99 ; CHECK-LABEL: f6 100 ; CHECK: b{{(\.w)?}} _consumestruct 101 entry: 102 %addr = getelementptr inbounds %struct.SmallStruct, %struct.SmallStruct* %s, i32 0, i32 0 103 %0 = bitcast i32* %addr to i8* 104 tail call void @consumestruct(i8* %0, i32 80) optsize 105 ret void 106 } 107 108 declare void @consumestruct(i8* nocapture %structp, i32 %structsize) nounwind 109 110 ; PR17309 111 %struct.I.8 = type { [10 x i32], [3 x i8] } 112 113 declare void @use_I(%struct.I.8* byval) 114 define void @test_I_16() { 115 ; CHECK-LABEL: test_I_16 116 ; CHECK: ldrb 117 ; CHECK: strb 118 entry: 119 call void @use_I(%struct.I.8* byval align 16 undef) 120 ret void 121 } 122
