llvm/llvm/test/CodeGen/Hexagon/struct_copy.ll

; RUN: llc -march=hexagon -hexagon-small-data-threshold=0 < %s | FileCheck %s
; Disable small-data, or otherwise g3 will end up in .sdata. While that is
; not a problem, this test was originally written with the g3 not being in
; there, so keep it that way.

%s.0 = type { i32, i32, i32, i32, i32, i32 }
%s.1 = type { i64, i64, i64, i64, i64, i64 }
%s.2 = type { i16, i16, i16, i16, i16, i16 }
%s.3 = type { i8, i8, i8, i8, i8, i8 }

@g0 = external global %s.0
@g1 = external global %s.1
@g2 = external global %s.2
@g3 = external global %s.3

; CHECK-LABEL: f0:
; CHECK: [[REG1:(r[0-9]+)]] = {{[#]+}}g0
; CHECK: r{{[0-9]+}} = memw([[REG1]]+#{{[0-9]+}})
; CHECK-NOT: = memd
; CHECK: dealloc_return
define i32 @f0() #0 {
b0:
  %v0 = alloca %s.0, align 4
  call void @llvm.memcpy.p0.p0.i32(ptr align 4 %v0, ptr align 4 @g0, i32 24, i1 false)
  call void @f1(ptr %v0) #0
  ret i32 0
}

declare void @f1(ptr)

; CHECK-LABEL: f2:
; CHECK: [[REG2:(r[0-9]+)]] = {{[#]+}}g1
; CHECK: r{{[0-9]+}}:{{[0-9]+}} = memd([[REG2]]+#{{[0-9]+}})
; CHECK: dealloc_return
define i32 @f2() #0 {
b0:
  %v0 = alloca %s.1, align 8
  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %v0, ptr align 8 @g1, i32 48, i1 false)
  call void @f3(ptr %v0) #0
  ret i32 0
}

declare void @f3(ptr)

; CHECK-LABEL: f4:
; CHECK: [[REG1:(r[0-9]+)]] = {{[#]+}}g2
; CHECK: r{{[0-9]+}} = mem{{u?}}h([[REG1]]+#{{[0-9]+}})
; CHECK-NOT: = memd
; CHECK: dealloc_return
define i32 @f4() #0 {
b0:
  %v0 = alloca %s.2, align 2
  call void @llvm.memcpy.p0.p0.i32(ptr align 2 %v0, ptr align 2 @g2, i32 12, i1 false)
  call void @f5(ptr %v0) #0
  ret i32 0
}

declare void @f5(ptr)

; CHECK-LABEL: f6:
; CHECK: [[REG1:(r[0-9]+)]] = {{[#]+}}g3
; CHECK: r{{[0-9]+}} = mem{{u?}}b([[REG1]]+#{{[0-9]+}})
; CHECK-NOT: = memw
; CHECK: dealloc_return
define i32 @f6() #0 {
b0:
  %v0 = alloca %s.3, align 1
  call void @llvm.memcpy.p0.p0.i32(ptr align 1 %v0, ptr align 1 @g3, i32 6, i1 false)
  call void @f7(ptr %v0) #0
  ret i32 0
}

declare void @f7(ptr)

declare void @llvm.memcpy.p0.p0.i32(ptr nocapture writeonly, ptr nocapture readonly, i32, i1) #1

attributes #0 = { nounwind }
attributes #1 = { argmemonly nounwind }