forked from OSchip/llvm-project
325 lines
12 KiB
LLVM
325 lines
12 KiB
LLVM
; RUN: llc < %s -mtriple=armv7-apple-ios -disable-post-ra -o - | FileCheck %s --check-prefix=CHECK-IOS --check-prefix=CHECK
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; RUN: llc < %s -mtriple=thumbv7m-none-macho -disable-post-ra -o - | FileCheck %s --check-prefix=CHECK-DARWIN --check-prefix=CHECK
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; RUN: llc < %s -mtriple=arm-none-eabi -disable-post-ra -o - | FileCheck %s --check-prefix=CHECK-EABI --check-prefix=CHECK
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; RUN: llc < %s -mtriple=arm-none-eabihf -disable-post-ra -o - | FileCheck %s --check-prefix=CHECK-EABI --check-prefix=CHECK
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define void @f1(i8* %dest, i8* %src) {
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entry:
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; CHECK-LABEL: f1
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; CHECK-IOS: memmove
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; CHECK-DARWIN: memmove
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; CHECK-EABI: __aeabi_memmove
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call void @llvm.memmove.p0i8.p0i8.i32(i8* %dest, i8* %src, i32 500, i32 0, i1 false)
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; CHECK-IOS: memcpy
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; CHECK-DARWIN: memcpy
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; CHECK-EABI: __aeabi_memcpy
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call void @llvm.memcpy.p0i8.p0i8.i32(i8* %dest, i8* %src, i32 500, i32 0, i1 false)
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; EABI memset swaps arguments
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; CHECK-IOS: mov r1, #0
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; CHECK-IOS: memset
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; CHECK-DARWIN: movs r1, #0
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; CHECK-DARWIN: memset
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; CHECK-EABI: mov r2, #0
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; CHECK-EABI: __aeabi_memset
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call void @llvm.memset.p0i8.i32(i8* %dest, i8 0, i32 500, i32 0, i1 false)
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unreachable
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}
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; Check that alloca arguments to memory intrinsics are automatically aligned if at least 8 bytes in size
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define void @f2(i8* %dest, i32 %n) {
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entry:
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; CHECK-LABEL: f2
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; IOS (ARMv7) should 8-byte align, others should 4-byte align
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; CHECK-IOS: add r1, sp, #32
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; CHECK-IOS: memmove
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; CHECK-DARWIN: add r1, sp, #28
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; CHECK-DARWIN: memmove
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; CHECK-EABI: add r1, sp, #28
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; CHECK-EABI: __aeabi_memmove
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%arr0 = alloca [9 x i8], align 1
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%0 = bitcast [9 x i8]* %arr0 to i8*
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call void @llvm.memmove.p0i8.p0i8.i32(i8* %dest, i8* %0, i32 %n, i32 0, i1 false)
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; CHECK: add r1, sp, #16
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; CHECK-IOS: memcpy
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; CHECK-DARWIN: memcpy
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; CHECK-EABI: __aeabi_memcpy
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%arr1 = alloca [9 x i8], align 1
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%1 = bitcast [9 x i8]* %arr1 to i8*
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call void @llvm.memcpy.p0i8.p0i8.i32(i8* %dest, i8* %1, i32 %n, i32 0, i1 false)
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; CHECK-IOS: mov r0, sp
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; CHECK-IOS: mov r1, #0
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; CHECK-IOS: memset
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; CHECK-DARINW: add r0, sp, #4
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; CHECK-DARWIN: movs r1, #0
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; CHECK-DARWIN: memset
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; CHECK-EABI: add r0, sp, #4
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; CHECK-EABI: mov r2, #0
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; CHECK-EABI: __aeabi_memset
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%arr2 = alloca [9 x i8], align 1
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%2 = bitcast [9 x i8]* %arr2 to i8*
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call void @llvm.memset.p0i8.i32(i8* %2, i8 0, i32 %n, i32 0, i1 false)
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unreachable
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}
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; Check that alloca arguments are not aligned if less than 8 bytes in size
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define void @f3(i8* %dest, i32 %n) {
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entry:
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; CHECK-LABEL: f3
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; CHECK: {{add(.w)? r1, sp, #17|sub(.w)? r1, r7, #15}}
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; CHECK-IOS: memmove
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; CHECK-DARWIN: memmove
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; CHECK-EABI: __aeabi_memmove
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%arr0 = alloca [7 x i8], align 1
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%0 = bitcast [7 x i8]* %arr0 to i8*
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call void @llvm.memmove.p0i8.p0i8.i32(i8* %dest, i8* %0, i32 %n, i32 0, i1 false)
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; CHECK: {{add(.w)? r1, sp, #10}}
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; CHECK-IOS: memcpy
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; CHECK-DARWIN: memcpy
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; CHECK-EABI: __aeabi_memcpy
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%arr1 = alloca [7 x i8], align 1
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%1 = bitcast [7 x i8]* %arr1 to i8*
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call void @llvm.memcpy.p0i8.p0i8.i32(i8* %dest, i8* %1, i32 %n, i32 0, i1 false)
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; CHECK: {{add(.w)? r0, sp, #3}}
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; CHECK-IOS: mov r1, #0
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; CHECK-IOS: memset
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; CHECK-DARWIN: movs r1, #0
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; CHECK-DARWIN: memset
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; CHECK-EABI: mov r2, #0
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; CHECK-EABI: __aeabi_memset
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%arr2 = alloca [7 x i8], align 1
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%2 = bitcast [7 x i8]* %arr2 to i8*
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call void @llvm.memset.p0i8.i32(i8* %2, i8 0, i32 %n, i32 0, i1 false)
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unreachable
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}
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; Check that alloca arguments are not aligned if size+offset is less than 8 bytes
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define void @f4(i8* %dest, i32 %n) {
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entry:
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; CHECK-LABEL: f4
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; CHECK: {{add(.w)? r., sp, #23|sub(.w)? r., r7, #17}}
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; CHECK-IOS: memmove
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; CHECK-DARWIN: memmove
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; CHECK-EABI: __aeabi_memmove
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%arr0 = alloca [9 x i8], align 1
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%0 = getelementptr inbounds [9 x i8], [9 x i8]* %arr0, i32 0, i32 4
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call void @llvm.memmove.p0i8.p0i8.i32(i8* %dest, i8* %0, i32 %n, i32 0, i1 false)
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; CHECK: {{add(.w)? r., sp, #(10|14)}}
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; CHECK-IOS: memcpy
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; CHECK-DARWIN: memcpy
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; CHECK-EABI: __aeabi_memcpy
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%arr1 = alloca [9 x i8], align 1
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%1 = getelementptr inbounds [9 x i8], [9 x i8]* %arr1, i32 0, i32 4
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call void @llvm.memcpy.p0i8.p0i8.i32(i8* %dest, i8* %1, i32 %n, i32 0, i1 false)
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; CHECK: {{add(.w)? r., sp, #(1|5)}}
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; CHECK-IOS: mov r1, #0
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; CHECK-IOS: memset
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; CHECK-DARWIN: movs r1, #0
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; CHECK-DARWIN: memset
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; CHECK-EABI: mov r2, #0
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; CHECK-EABI: __aeabi_memset
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%arr2 = alloca [9 x i8], align 1
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%2 = getelementptr inbounds [9 x i8], [9 x i8]* %arr2, i32 0, i32 4
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call void @llvm.memset.p0i8.i32(i8* %2, i8 0, i32 %n, i32 0, i1 false)
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unreachable
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}
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; Check that alloca arguments are not aligned if the offset is not a multiple of 4
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define void @f5(i8* %dest, i32 %n) {
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entry:
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; CHECK-LABEL: f5
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; CHECK: {{add(.w)? r., sp, #27|sub(.w)? r., r7, #21}}
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; CHECK-IOS: memmove
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; CHECK-DARWIN: memmove
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; CHECK-EABI: __aeabi_memmove
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%arr0 = alloca [13 x i8], align 1
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%0 = getelementptr inbounds [13 x i8], [13 x i8]* %arr0, i32 0, i32 1
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call void @llvm.memmove.p0i8.p0i8.i32(i8* %dest, i8* %0, i32 %n, i32 0, i1 false)
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; CHECK: {{add(.w)? r., sp, #(10|14)}}
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; CHECK-IOS: memcpy
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; CHECK-DARWIN: memcpy
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; CHECK-EABI: __aeabi_memcpy
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%arr1 = alloca [13 x i8], align 1
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%1 = getelementptr inbounds [13 x i8], [13 x i8]* %arr1, i32 0, i32 1
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call void @llvm.memcpy.p0i8.p0i8.i32(i8* %dest, i8* %1, i32 %n, i32 0, i1 false)
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; CHECK: {{add(.w)? r., sp, #(1|5)}}
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; CHECK-IOS: mov r1, #0
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; CHECK-IOS: memset
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; CHECK-DARWIN: movs r1, #0
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; CHECK-DARWIN: memset
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; CHECK-EABI: mov r2, #0
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; CHECK-EABI: __aeabi_memset
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%arr2 = alloca [13 x i8], align 1
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%2 = getelementptr inbounds [13 x i8], [13 x i8]* %arr2, i32 0, i32 1
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call void @llvm.memset.p0i8.i32(i8* %2, i8 0, i32 %n, i32 0, i1 false)
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unreachable
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}
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; Check that alloca arguments are not aligned if the offset is unknown
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define void @f6(i8* %dest, i32 %n, i32 %i) {
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entry:
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; CHECK-LABEL: f6
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; CHECK: {{add(.w)? r., sp, #27|sub(.w)? r., r7, #25}}
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; CHECK-IOS: memmove
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; CHECK-DARWIN: memmove
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; CHECK-EABI: __aeabi_memmove
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%arr0 = alloca [13 x i8], align 1
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%0 = getelementptr inbounds [13 x i8], [13 x i8]* %arr0, i32 0, i32 %i
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call void @llvm.memmove.p0i8.p0i8.i32(i8* %dest, i8* %0, i32 %n, i32 0, i1 false)
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; CHECK: {{add(.w)? r., sp, #(10|14)}}
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; CHECK-IOS: memcpy
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; CHECK-DARWIN: memcpy
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; CHECK-EABI: __aeabi_memcpy
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%arr1 = alloca [13 x i8], align 1
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%1 = getelementptr inbounds [13 x i8], [13 x i8]* %arr1, i32 0, i32 %i
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call void @llvm.memcpy.p0i8.p0i8.i32(i8* %dest, i8* %1, i32 %n, i32 0, i1 false)
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; CHECK: {{add(.w)? r., sp, #(1|5)}}
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; CHECK-IOS: mov r1, #0
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; CHECK-IOS: memset
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; CHECK-DARWIN: movs r1, #0
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; CHECK-DARWIN: memset
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; CHECK-EABI: mov r2, #0
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; CHECK-EABI: __aeabi_memset
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%arr2 = alloca [13 x i8], align 1
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%2 = getelementptr inbounds [13 x i8], [13 x i8]* %arr2, i32 0, i32 %i
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call void @llvm.memset.p0i8.i32(i8* %2, i8 0, i32 %n, i32 0, i1 false)
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unreachable
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}
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; Check that alloca arguments are not aligned if the GEP is not inbounds
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define void @f7(i8* %dest, i32 %n) {
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entry:
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; CHECK-LABEL: f7
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; CHECK: {{add(.w)? r., sp, #27|sub(.w)? r., r7, #21}}
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; CHECK-IOS: memmove
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; CHECK-DARWIN: memmove
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; CHECK-EABI: __aeabi_memmove
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%arr0 = alloca [13 x i8], align 1
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%0 = getelementptr [13 x i8], [13 x i8]* %arr0, i32 0, i32 4
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call void @llvm.memmove.p0i8.p0i8.i32(i8* %dest, i8* %0, i32 %n, i32 0, i1 false)
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; CHECK: {{add(.w)? r., sp, #(10|14)}}
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; CHECK-IOS: memcpy
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; CHECK-DARWIN: memcpy
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; CHECK-EABI: __aeabi_memcpy
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%arr1 = alloca [13 x i8], align 1
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%1 = getelementptr [13 x i8], [13 x i8]* %arr1, i32 0, i32 4
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call void @llvm.memcpy.p0i8.p0i8.i32(i8* %dest, i8* %1, i32 %n, i32 0, i1 false)
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; CHECK: {{add(.w)? r., sp, #(1|5)}}
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; CHECK-IOS: mov r1, #0
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; CHECK-IOS: memset
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; CHECK-DARWIN: movs r1, #0
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; CHECK-DARWIN: memset
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; CHECK-EABI: mov r2, #0
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; CHECK-EABI: __aeabi_memset
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%arr2 = alloca [13 x i8], align 1
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%2 = getelementptr [13 x i8], [13 x i8]* %arr2, i32 0, i32 4
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call void @llvm.memset.p0i8.i32(i8* %2, i8 0, i32 %n, i32 0, i1 false)
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unreachable
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}
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; Check that alloca arguments are not aligned when the offset is past the end of the allocation
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define void @f8(i8* %dest, i32 %n) {
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entry:
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; CHECK-LABEL: f8
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; CHECK: {{add(.w)? r., sp, #27|sub(.w)? r., r7, #21}}
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; CHECK-IOS: memmove
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; CHECK-DARWIN: memmove
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; CHECK-EABI: __aeabi_memmove
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%arr0 = alloca [13 x i8], align 1
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%0 = getelementptr inbounds [13 x i8], [13 x i8]* %arr0, i32 0, i32 16
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call void @llvm.memmove.p0i8.p0i8.i32(i8* %dest, i8* %0, i32 %n, i32 0, i1 false)
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; CHECK: {{add(.w)? r., sp, #(10|14)}}
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; CHECK-IOS: memcpy
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; CHECK-DARWIN: memcpy
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; CHECK-EABI: __aeabi_memcpy
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%arr1 = alloca [13 x i8], align 1
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%1 = getelementptr inbounds [13 x i8], [13 x i8]* %arr1, i32 0, i32 16
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call void @llvm.memcpy.p0i8.p0i8.i32(i8* %dest, i8* %1, i32 %n, i32 0, i1 false)
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; CHECK: {{add(.w)? r., sp, #(1|5)}}
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; CHECK-IOS: mov r1, #0
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; CHECK-IOS: memset
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; CHECK-DARWIN: movs r1, #0
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; CHECK-DARWIN: memset
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; CHECK-EABI: mov r2, #0
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; CHECK-EABI: __aeabi_memset
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%arr2 = alloca [13 x i8], align 1
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%2 = getelementptr inbounds [13 x i8], [13 x i8]* %arr2, i32 0, i32 16
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call void @llvm.memset.p0i8.i32(i8* %2, i8 0, i32 %n, i32 0, i1 false)
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unreachable
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}
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; Check that global variables are aligned if they are large enough, but only if
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; they are defined in this object and don't have an explicit section.
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@arr1 = global [7 x i8] c"\01\02\03\04\05\06\07", align 1
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@arr2 = global [8 x i8] c"\01\02\03\04\05\06\07\08", align 1
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@arr3 = global [7 x i8] c"\01\02\03\04\05\06\07", section "foo,bar", align 1
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@arr4 = global [8 x i8] c"\01\02\03\04\05\06\07\08", section "foo,bar", align 1
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@arr5 = weak global [7 x i8] c"\01\02\03\04\05\06\07", align 1
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@arr6 = weak_odr global [7 x i8] c"\01\02\03\04\05\06\07", align 1
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@arr7 = external global [7 x i8], align 1
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define void @f9(i8* %dest, i32 %n) {
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entry:
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call void @llvm.memcpy.p0i8.p0i8.i32(i8* %dest, i8* getelementptr inbounds ([7 x i8], [7 x i8]* @arr1, i32 0, i32 0), i32 %n, i32 1, i1 false)
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call void @llvm.memcpy.p0i8.p0i8.i32(i8* %dest, i8* getelementptr inbounds ([8 x i8], [8 x i8]* @arr2, i32 0, i32 0), i32 %n, i32 1, i1 false)
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call void @llvm.memcpy.p0i8.p0i8.i32(i8* %dest, i8* getelementptr inbounds ([7 x i8], [7 x i8]* @arr3, i32 0, i32 0), i32 %n, i32 1, i1 false)
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call void @llvm.memcpy.p0i8.p0i8.i32(i8* %dest, i8* getelementptr inbounds ([8 x i8], [8 x i8]* @arr4, i32 0, i32 0), i32 %n, i32 1, i1 false)
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call void @llvm.memcpy.p0i8.p0i8.i32(i8* %dest, i8* getelementptr inbounds ([7 x i8], [7 x i8]* @arr5, i32 0, i32 0), i32 %n, i32 1, i1 false)
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call void @llvm.memcpy.p0i8.p0i8.i32(i8* %dest, i8* getelementptr inbounds ([7 x i8], [7 x i8]* @arr6, i32 0, i32 0), i32 %n, i32 1, i1 false)
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call void @llvm.memcpy.p0i8.p0i8.i32(i8* %dest, i8* getelementptr inbounds ([7 x i8], [7 x i8]* @arr7, i32 0, i32 0), i32 %n, i32 1, i1 false)
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unreachable
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}
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; CHECK: {{\.data|\.section.+data}}
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; CHECK-NOT: .align
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; CHECK: arr1:
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; CHECK-IOS: .align 3
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; CHECK-DARWIN: .align 2
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; CHECK-EABI: .align 2
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; CHECK: arr2:
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; CHECK: {{\.section.+foo,bar}}
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; CHECK-NOT: .align
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; CHECK: arr3:
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; CHECK-NOT: .align
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; CHECK: arr4:
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; CHECK: {{\.data|\.section.+data}}
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; CHECK-NOT: .align
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; CHECK: arr5:
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; CHECK-NOT: .align
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; CHECK: arr6:
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; CHECK-NOT: arr7:
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declare void @llvm.memmove.p0i8.p0i8.i32(i8* nocapture, i8* nocapture, i32, i32, i1) nounwind
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declare void @llvm.memcpy.p0i8.p0i8.i32(i8* nocapture, i8* nocapture, i32, i32, i1) nounwind
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declare void @llvm.memset.p0i8.i32(i8* nocapture, i8, i32, i32, i1) nounwind
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