llvm/test/Transforms/CodeGenPrepare/X86/split-store-alignment.ll

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -codegenprepare -mtriple=x86_64-unknown-unknown -force-split-store -S < %s | FileCheck %s

target datalayout = "e-m:x-p:32:32-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:32-n8:16:32-a:0:32-S32"
target triple = "i686-w64-windows-gnu"

define void @split_store_align1(float %x, i64* %p) {
; CHECK-LABEL: @split_store_align1(
; CHECK-NEXT:    [[B:%.*]] = bitcast float [[X:%.*]] to i32
; CHECK-NEXT:    [[Z:%.*]] = zext i32 0 to i64
; CHECK-NEXT:    [[S:%.*]] = shl nuw nsw i64 [[Z]], 32
; CHECK-NEXT:    [[Z2:%.*]] = zext i32 [[B]] to i64
; CHECK-NEXT:    [[O:%.*]] = or i64 [[S]], [[Z2]]
; CHECK-NEXT:    [[TMP1:%.*]] = bitcast i64* [[P:%.*]] to i32*
; CHECK-NEXT:    store i32 [[B]], i32* [[TMP1]], align 1
; CHECK-NEXT:    [[TMP2:%.*]] = bitcast i64* [[P]] to i32*
; CHECK-NEXT:    [[TMP3:%.*]] = getelementptr i32, i32* [[TMP2]], i32 1
; CHECK-NEXT:    store i32 0, i32* [[TMP3]], align 1
; CHECK-NEXT:    ret void
;
  %b = bitcast float %x to i32
  %z = zext i32 0 to i64
  %s = shl nuw nsw i64 %z, 32
  %z2 = zext i32 %b to i64
  %o = or i64 %s, %z2
  store i64 %o, i64* %p, align 1
  ret void
}

define void @split_store_align2(float %x, i64* %p) {
; CHECK-LABEL: @split_store_align2(
; CHECK-NEXT:    [[B:%.*]] = bitcast float [[X:%.*]] to i32
; CHECK-NEXT:    [[Z:%.*]] = zext i32 0 to i64
; CHECK-NEXT:    [[S:%.*]] = shl nuw nsw i64 [[Z]], 32
; CHECK-NEXT:    [[Z2:%.*]] = zext i32 [[B]] to i64
; CHECK-NEXT:    [[O:%.*]] = or i64 [[S]], [[Z2]]
; CHECK-NEXT:    [[TMP1:%.*]] = bitcast i64* [[P:%.*]] to i32*
; CHECK-NEXT:    store i32 [[B]], i32* [[TMP1]], align 2
; CHECK-NEXT:    [[TMP2:%.*]] = bitcast i64* [[P]] to i32*
; CHECK-NEXT:    [[TMP3:%.*]] = getelementptr i32, i32* [[TMP2]], i32 1
; CHECK-NEXT:    store i32 0, i32* [[TMP3]], align 2
; CHECK-NEXT:    ret void
;
  %b = bitcast float %x to i32
  %z = zext i32 0 to i64
  %s = shl nuw nsw i64 %z, 32
  %z2 = zext i32 %b to i64
  %o = or i64 %s, %z2
  store i64 %o, i64* %p, align 2
  ret void
}

define void @split_store_align8(float %x, i64* %p) {
; CHECK-LABEL: @split_store_align8(
; CHECK-NEXT:    [[B:%.*]] = bitcast float [[X:%.*]] to i32
; CHECK-NEXT:    [[Z:%.*]] = zext i32 0 to i64
; CHECK-NEXT:    [[S:%.*]] = shl nuw nsw i64 [[Z]], 32
; CHECK-NEXT:    [[Z2:%.*]] = zext i32 [[B]] to i64
; CHECK-NEXT:    [[O:%.*]] = or i64 [[S]], [[Z2]]
; CHECK-NEXT:    [[TMP1:%.*]] = bitcast i64* [[P:%.*]] to i32*
; CHECK-NEXT:    store i32 [[B]], i32* [[TMP1]], align 8
; CHECK-NEXT:    [[TMP2:%.*]] = bitcast i64* [[P]] to i32*
; CHECK-NEXT:    [[TMP3:%.*]] = getelementptr i32, i32* [[TMP2]], i32 1
; CHECK-NEXT:    store i32 0, i32* [[TMP3]], align 4
; CHECK-NEXT:    ret void
;
  %b = bitcast float %x to i32
  %z = zext i32 0 to i64
  %s = shl nuw nsw i64 %z, 32
  %z2 = zext i32 %b to i64
  %o = or i64 %s, %z2
  store i64 %o, i64* %p, align 8
  ret void
}