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 12define i32 @f() nounwind ssp { 13entry: 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(ptr byval(%struct.SmallStruct) %st) 20 ret i32 0 21} 22 23; Generate a loop for large struct byval 24define i32 @g() nounwind ssp { 25entry: 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[0-9]+|lr}}, # 35; NACL: ldr 36; NACL: sub 37; NACL: str 38; NACL: bne 39 %st = alloca %struct.LargeStruct, align 4 40 %call = call i32 @e2(ptr byval(%struct.LargeStruct) %st) 41 ret i32 0 42} 43 44; Generate a loop using NEON instructions 45define i32 @h() nounwind ssp { 46entry: 47; CHECK-LABEL: h: 48; CHECK: vld1 49; CHECK: sub 50; CHECK: vst1 51; CHECK: bne 52; NACL: movw {{r[0-9]+|lr}}, # 53; NACL: vld1 54; NACL: sub 55; NACL: vst1 56; NACL: bne 57 %st = alloca %struct.LargeStruct, align 16 58 %call = call i32 @e3(ptr byval(%struct.LargeStruct) align 16 %st) 59 ret i32 0 60} 61 62declare i32 @e1(ptr nocapture byval(%struct.SmallStruct) %in) nounwind 63declare i32 @e2(ptr nocapture byval(%struct.LargeStruct) %in) nounwind 64declare i32 @e3(ptr nocapture byval(%struct.LargeStruct) 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. 69define void @f3(ptr nocapture byval(%struct.SmallStruct) %s) nounwind optsize { 70; CHECK-LABEL: f3 71; CHECK: bl _consumestruct 72entry: 73 tail call void @consumestruct(ptr %s, i32 80) optsize 74 ret void 75} 76 77define void @f4(ptr nocapture byval(%struct.SmallStruct) %s) nounwind optsize { 78; CHECK-LABEL: f4 79; CHECK: bl _consumestruct 80entry: 81 tail call void @consumestruct(ptr %s, i32 80) optsize 82 ret void 83} 84 85; We can do tail call here since s is in the incoming argument area. 86define void @f5(i32 %a, i32 %b, i32 %c, i32 %d, ptr nocapture byval(%struct.SmallStruct) %s) nounwind optsize { 87; CHECK-LABEL: f5 88; CHECK: b{{(\.w)?}} _consumestruct 89entry: 90 tail call void @consumestruct(ptr %s, i32 80) optsize 91 ret void 92} 93 94define void @f6(i32 %a, i32 %b, i32 %c, i32 %d, ptr nocapture byval(%struct.SmallStruct) %s) nounwind optsize { 95; CHECK-LABEL: f6 96; CHECK: b{{(\.w)?}} _consumestruct 97entry: 98 tail call void @consumestruct(ptr %s, i32 80) optsize 99 ret void 100} 101 102declare void @consumestruct(ptr nocapture %structp, i32 %structsize) nounwind 103 104; PR17309 105%struct.I.8 = type { [10 x i32], [3 x i8] } 106 107declare void @use_I(ptr byval(%struct.I.8)) 108define void @test_I_16() { 109; CHECK-LABEL: test_I_16 110; CHECK: ldrb 111; CHECK: strb 112entry: 113 call void @use_I(ptr byval(%struct.I.8) align 16 undef) 114 ret void 115} 116