Merge commit '75db91b478fc' from llvm.org/master into apple/master

Author: git apple-llvm automerger

llvm/test/CodeGen/X86/vector-width-store-merge.ll

@@ -1,44 +1,65 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
 ; RUN: llc < %s -mtriple=x86_64-- | FileCheck %s
 
 ; This tests whether or not we generate vectors large than preferred vector width when
 ; lowering memmove.
 
 ; Function Attrs: nounwind uwtable
 define weak_odr dso_local void @A(i8* %src, i8* %dst) local_unnamed_addr #0 {
+; CHECK-LABEL: A:
+; CHECK:       # %bb.0: # %entry
+; CHECK-NEXT:    vmovups (%rdi), %xmm0
+; CHECK-NEXT:    vmovups 16(%rdi), %xmm1
+; CHECK-NEXT:    vmovups %xmm1, 16(%rsi)
+; CHECK-NEXT:    vmovups %xmm0, (%rsi)
+; CHECK-NEXT:    retq
 entry:
-; CHECK: A
-; CHECK-NOT: vmovups %ymm
-; CHECK: vmovups %xmm
   call void @llvm.memmove.p0i8.p0i8.i64(i8* align 1 %dst, i8* align 1 %src, i64 32, i1 false)
   ret void
 }
 
 ; Function Attrs: nounwind uwtable
 define weak_odr dso_local void @B(i8* %src, i8* %dst) local_unnamed_addr #0 {
+; CHECK-LABEL: B:
+; CHECK:       # %bb.0: # %entry
+; CHECK-NEXT:    vmovups (%rdi), %xmm0
+; CHECK-NEXT:    vmovups 16(%rdi), %xmm1
+; CHECK-NEXT:    vmovups 32(%rdi), %xmm2
+; CHECK-NEXT:    vmovups 48(%rdi), %xmm3
+; CHECK-NEXT:    vmovups %xmm3, 48(%rsi)
+; CHECK-NEXT:    vmovups %xmm2, 32(%rsi)
+; CHECK-NEXT:    vmovups %xmm1, 16(%rsi)
+; CHECK-NEXT:    vmovups %xmm0, (%rsi)
+; CHECK-NEXT:    retq
 entry:
-; CHECK: B
-; CHECK-NOT: vmovups %zmm
-; CHECK: vmovups %xmm
   call void @llvm.memmove.p0i8.p0i8.i64(i8* align 1 %dst, i8* align 1 %src, i64 64, i1 false)
   ret void
 }
 
 ; Function Attrs: nounwind uwtable
 define weak_odr dso_local void @C(i8* %src, i8* %dst) local_unnamed_addr #2 {
+; CHECK-LABEL: C:
+; CHECK:       # %bb.0: # %entry
+; CHECK-NEXT:    vmovups (%rdi), %ymm0
+; CHECK-NEXT:    vmovups %ymm0, (%rsi)
+; CHECK-NEXT:    vzeroupper
+; CHECK-NEXT:    retq
 entry:
-; CHECK: C
-; CHECK-NOT: vmovups %ymm
-; CHECK: vmovups %ymm
   call void @llvm.memmove.p0i8.p0i8.i64(i8* align 1 %dst, i8* align 1 %src, i64 32, i1 false)
   ret void
 }
 
 ; Function Attrs: nounwind uwtable
 define weak_odr dso_local void @D(i8* %src, i8* %dst) local_unnamed_addr #2 {
+; CHECK-LABEL: D:
+; CHECK:       # %bb.0: # %entry
+; CHECK-NEXT:    vmovups (%rdi), %ymm0
+; CHECK-NEXT:    vmovups 32(%rdi), %ymm1
+; CHECK-NEXT:    vmovups %ymm1, 32(%rsi)
+; CHECK-NEXT:    vmovups %ymm0, (%rsi)
+; CHECK-NEXT:    vzeroupper
+; CHECK-NEXT:    retq
 entry:
-; CHECK: D
-; CHECK-NOT: vmovups %zmm
-; CHECK: vmovups %ymm
   call void @llvm.memmove.p0i8.p0i8.i64(i8* align 1 %dst, i8* align 1 %src, i64 64, i1 false)
   ret void
 }