CodeGen peephole: fold redundant phys reg copies

[oota-llvm.git] / test / CodeGen / X86 / dag-merge-fast-accesses.ll

diff --git a/test/CodeGen/X86/dag-merge-fast-accesses.ll b/test/CodeGen/X86/dag-merge-fast-accesses.ll
index c5bb34013add12a15f6ca7f8734d75aa34421007..867881d83d3f4559f1841946ac5d95472512787e 100644 (file)
--- a/test/CodeGen/X86/dag-merge-fast-accesses.ll
+++ b/test/CodeGen/X86/dag-merge-fast-accesses.ll
@@ -1,3 +1,4 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
 ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=-slow-unaligned-mem-16 | FileCheck %s --check-prefix=FAST
 ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+slow-unaligned-mem-16 | FileCheck %s --check-prefix=SLOW
 
@@ -50,11 +51,19 @@ define void @merge_vec_element_store(<4 x double> %v, double* %ptr) {
 }
 
 
+;; TODO: FAST *should* be:
+;;    movups (%rdi), %xmm0
+;;    movups %xmm0, 40(%rdi)
+;; ..but is not currently. See the UseAA FIXME in DAGCombiner.cpp
+;; visitSTORE.
+
 define void @merge_vec_load_and_stores(i64 *%ptr) {
 ; FAST-LABEL: merge_vec_load_and_stores:
 ; FAST:       # BB#0:
-; FAST-NEXT:    movups (%rdi), %xmm0
-; FAST-NEXT:    movups %xmm0, 40(%rdi)
+; FAST-NEXT:    movq (%rdi), %rax
+; FAST-NEXT:    movq 8(%rdi), %rcx
+; FAST-NEXT:    movq %rax, 40(%rdi)
+; FAST-NEXT:    movq %rcx, 48(%rdi)
 ; FAST-NEXT:    retq
 ;
 ; SLOW-LABEL: merge_vec_load_and_stores: