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Source code

; ModuleID = './example.cpp'
source_filename = "./example.cpp"
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

; Function Attrs: noinline norecurse nounwind readnone
define i8* @align_up(i8* %ptr, i64 %alignment) local_unnamed_addr #0 {
entry:
  %mask = add nsw i64 %alignment, -1
  %over_boundary = getelementptr i8, i8* %ptr, i64 %mask
  %intptr = ptrtoint i8* %over_boundary to i64
  %past_end = and i64 %mask, %intptr
  %to_subtract = sub i64 0, %past_end
  %aligned_result = getelementptr i8, i8* %over_boundary, i64 %to_subtract
  ret i8* %aligned_result
}

define i32* @align_up_16(i32* %ptr, i64 %alignment) local_unnamed_addr #0 {
entry:
  %ptr_i8 = bitcast i32* %ptr to i8*
  %call = call i8* @align_up(i8* %ptr_i8, i64 16)
  %result = bitcast i8* %call to i32*
  ret i32* %result
}

attributes #0 = { norecurse nounwind readnone uwtable }

!llvm.module.flags = !{!0}
!llvm.ident = !{!1}

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{!"clang version 10.0.0 (https://github.com/llvm/llvm-project.git e3e13db714e0d642ae44d5d392b137ec64d93a00)"}