| ; RUN: llc < %s -mtriple=armv7-apple-ios6.0 | FileCheck %s |
| ; RUN: llc < %s -mtriple=thumbv7-apple-ios6.0 | FileCheck %s |
| ; RUN: llc < %s -mtriple=armv7-unknown-nacl-gnueabi | FileCheck %s -check-prefix=NACL |
| ; RUN: llc < %s -mtriple=armv5-none-linux-gnueabi | FileCheck %s -check-prefix=NOMOVT |
| |
| ; NOMOVT-NOT: movt |
| |
| ; rdar://9877866 |
| %struct.SmallStruct = type { i32, [8 x i32], [37 x i8] } |
| %struct.LargeStruct = type { i32, [1001 x i8], [300 x i32] } |
| |
| define i32 @f() nounwind ssp { |
| entry: |
| ; CHECK-LABEL: f: |
| ; CHECK: ldr |
| ; CHECK: str |
| ; CHECK-NOT:bne |
| %st = alloca %struct.SmallStruct, align 4 |
| %call = call i32 @e1(%struct.SmallStruct* byval %st) |
| ret i32 0 |
| } |
| |
| ; Generate a loop for large struct byval |
| define i32 @g() nounwind ssp { |
| entry: |
| ; CHECK-LABEL: g: |
| ; CHECK: ldr |
| ; CHECK: sub |
| ; CHECK: str |
| ; CHECK: bne |
| ; NACL-LABEL: g: |
| ; Ensure that use movw instead of constpool for the loop trip count. But don't |
| ; match the __stack_chk_guard movw |
| ; NACL: movw r{{[1-9]}}, # |
| ; NACL: ldr |
| ; NACL: sub |
| ; NACL: str |
| ; NACL: bne |
| %st = alloca %struct.LargeStruct, align 4 |
| %call = call i32 @e2(%struct.LargeStruct* byval %st) |
| ret i32 0 |
| } |
| |
| ; Generate a loop using NEON instructions |
| define i32 @h() nounwind ssp { |
| entry: |
| ; CHECK-LABEL: h: |
| ; CHECK: vld1 |
| ; CHECK: sub |
| ; CHECK: vst1 |
| ; CHECK: bne |
| ; NACL: movw r{{[1-9]}}, # |
| ; NACL: vld1 |
| ; NACL: sub |
| ; NACL: vst1 |
| ; NACL: bne |
| %st = alloca %struct.LargeStruct, align 16 |
| %call = call i32 @e3(%struct.LargeStruct* byval align 16 %st) |
| ret i32 0 |
| } |
| |
| declare i32 @e1(%struct.SmallStruct* nocapture byval %in) nounwind |
| declare i32 @e2(%struct.LargeStruct* nocapture byval %in) nounwind |
| declare i32 @e3(%struct.LargeStruct* nocapture byval align 16 %in) nounwind |
| |
| ; rdar://12442472 |
| ; We can't do tail call since address of s is passed to the callee and part of |
| ; s is in caller's local frame. |
| define void @f3(%struct.SmallStruct* nocapture byval %s) nounwind optsize { |
| ; CHECK-LABEL: f3 |
| ; CHECK: bl _consumestruct |
| entry: |
| %0 = bitcast %struct.SmallStruct* %s to i8* |
| tail call void @consumestruct(i8* %0, i32 80) optsize |
| ret void |
| } |
| |
| define void @f4(%struct.SmallStruct* nocapture byval %s) nounwind optsize { |
| ; CHECK-LABEL: f4 |
| ; CHECK: bl _consumestruct |
| entry: |
| %addr = getelementptr inbounds %struct.SmallStruct, %struct.SmallStruct* %s, i32 0, i32 0 |
| %0 = bitcast i32* %addr to i8* |
| tail call void @consumestruct(i8* %0, i32 80) optsize |
| ret void |
| } |
| |
| ; We can do tail call here since s is in the incoming argument area. |
| define void @f5(i32 %a, i32 %b, i32 %c, i32 %d, %struct.SmallStruct* nocapture byval %s) nounwind optsize { |
| ; CHECK-LABEL: f5 |
| ; CHECK: b{{(\.w)?}} _consumestruct |
| entry: |
| %0 = bitcast %struct.SmallStruct* %s to i8* |
| tail call void @consumestruct(i8* %0, i32 80) optsize |
| ret void |
| } |
| |
| define void @f6(i32 %a, i32 %b, i32 %c, i32 %d, %struct.SmallStruct* nocapture byval %s) nounwind optsize { |
| ; CHECK-LABEL: f6 |
| ; CHECK: b{{(\.w)?}} _consumestruct |
| entry: |
| %addr = getelementptr inbounds %struct.SmallStruct, %struct.SmallStruct* %s, i32 0, i32 0 |
| %0 = bitcast i32* %addr to i8* |
| tail call void @consumestruct(i8* %0, i32 80) optsize |
| ret void |
| } |
| |
| declare void @consumestruct(i8* nocapture %structp, i32 %structsize) nounwind |
| |
| ; PR17309 |
| %struct.I.8 = type { [10 x i32], [3 x i8] } |
| |
| declare void @use_I(%struct.I.8* byval) |
| define void @test_I_16() { |
| ; CHECK-LABEL: test_I_16 |
| ; CHECK: ldrb |
| ; CHECK: strb |
| entry: |
| call void @use_I(%struct.I.8* byval align 16 undef) |
| ret void |
| } |