llvm-project/llvm/test/Transforms/Inline/align.ll

; RUN: opt -inline -preserve-alignment-assumptions-during-inlining -S < %s | FileCheck %s
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

define void @hello(float* align 128 nocapture %a, float* nocapture readonly %c) #0 {
entry:
  %0 = load float, float* %c, align 4
  %arrayidx = getelementptr inbounds float, float* %a, i64 5
  store float %0, float* %arrayidx, align 4
  ret void
}

define void @foo(float* nocapture %a, float* nocapture readonly %c) #0 {
entry:
  tail call void @hello(float* %a, float* %c)
  %0 = load float, float* %c, align 4
  %arrayidx = getelementptr inbounds float, float* %a, i64 7
  store float %0, float* %arrayidx, align 4
  ret void
}

; CHECK: define void @foo(float* nocapture %a, float* nocapture readonly %c) #0 {
; CHECK: entry:
; CHECK:   %ptrint = ptrtoint float* %a to i64
; CHECK:   %maskedptr = and i64 %ptrint, 127
; CHECK:   %maskcond = icmp eq i64 %maskedptr, 0
; CHECK:   call void @llvm.assume(i1 %maskcond)
; CHECK:   %0 = load float, float* %c, align 4
; CHECK:   %arrayidx.i = getelementptr inbounds float, float* %a, i64 5
; CHECK:   store float %0, float* %arrayidx.i, align 4
; CHECK:   %1 = load float, float* %c, align 4
; CHECK:   %arrayidx = getelementptr inbounds float, float* %a, i64 7
; CHECK:   store float %1, float* %arrayidx, align 4
; CHECK:   ret void
; CHECK: }

define void @fooa(float* nocapture align 128 %a, float* nocapture readonly %c) #0 {
entry:
  tail call void @hello(float* %a, float* %c)
  %0 = load float, float* %c, align 4
  %arrayidx = getelementptr inbounds float, float* %a, i64 7
  store float %0, float* %arrayidx, align 4
  ret void
}

; CHECK: define void @fooa(float* nocapture align 128 %a, float* nocapture readonly %c) #0 {
; CHECK: entry:
; CHECK:   %0 = load float, float* %c, align 4
; CHECK:   %arrayidx.i = getelementptr inbounds float, float* %a, i64 5
; CHECK:   store float %0, float* %arrayidx.i, align 4
; CHECK:   %1 = load float, float* %c, align 4
; CHECK:   %arrayidx = getelementptr inbounds float, float* %a, i64 7
; CHECK:   store float %1, float* %arrayidx, align 4
; CHECK:   ret void
; CHECK: }

define void @hello2(float* align 128 nocapture %a, float* align 128 nocapture %b, float* nocapture readonly %c) #0 {
entry:
  %0 = load float, float* %c, align 4
  %arrayidx = getelementptr inbounds float, float* %a, i64 5
  store float %0, float* %arrayidx, align 4
  %arrayidx1 = getelementptr inbounds float, float* %b, i64 8
  store float %0, float* %arrayidx1, align 4
  ret void
}

define void @foo2(float* nocapture %a, float* nocapture %b, float* nocapture readonly %c) #0 {
entry:
  tail call void @hello2(float* %a, float* %b, float* %c)
  %0 = load float, float* %c, align 4
  %arrayidx = getelementptr inbounds float, float* %a, i64 7
  store float %0, float* %arrayidx, align 4
  ret void
}

; CHECK: define void @foo2(float* nocapture %a, float* nocapture %b, float* nocapture readonly %c) #0 {
; CHECK: entry:
; CHECK:   %ptrint = ptrtoint float* %a to i64
; CHECK:   %maskedptr = and i64 %ptrint, 127
; CHECK:   %maskcond = icmp eq i64 %maskedptr, 0
; CHECK:   call void @llvm.assume(i1 %maskcond)
; CHECK:   %ptrint1 = ptrtoint float* %b to i64
; CHECK:   %maskedptr2 = and i64 %ptrint1, 127
; CHECK:   %maskcond3 = icmp eq i64 %maskedptr2, 0
; CHECK:   call void @llvm.assume(i1 %maskcond3)
; CHECK:   %0 = load float, float* %c, align 4
; CHECK:   %arrayidx.i = getelementptr inbounds float, float* %a, i64 5
; CHECK:   store float %0, float* %arrayidx.i, align 4
; CHECK:   %arrayidx1.i = getelementptr inbounds float, float* %b, i64 8
; CHECK:   store float %0, float* %arrayidx1.i, align 4
; CHECK:   %1 = load float, float* %c, align 4
; CHECK:   %arrayidx = getelementptr inbounds float, float* %a, i64 7
; CHECK:   store float %1, float* %arrayidx, align 4
; CHECK:   ret void
; CHECK: }

attributes #0 = { nounwind uwtable }