[llvm] r263037 - add a test RUN to show unexpected behavior

[Sanjay Patel via llvm-commits]

Author: spatel
Date: Wed Mar  9 11:53:28 2016
New Revision: 263037

URL: http://llvm.org/viewvc/llvm-project?rev=263037&view=rev
Log:
add a test RUN to show unexpected behavior

Modified:
    llvm/trunk/test/Transforms/LoopVectorize/X86/avx1.ll

Modified: llvm/trunk/test/Transforms/LoopVectorize/X86/avx1.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Transforms/LoopVectorize/X86/avx1.ll?rev=263037&r1=263036&r2=263037&view=diff
==============================================================================
--- llvm/trunk/test/Transforms/LoopVectorize/X86/avx1.ll (original)
+++ llvm/trunk/test/Transforms/LoopVectorize/X86/avx1.ll Wed Mar  9 11:53:28 2016
@@ -1,11 +1,12 @@
-; RUN: opt < %s  -loop-vectorize -mtriple=x86_64-apple-macosx10.8.0 -mcpu=corei7-avx -S | FileCheck %s
+; RUN: opt < %s  -loop-vectorize -mattr=avx,+slow-unaligned-mem-32 -S | FileCheck %s --check-prefix=SLOWMEM32 --check-prefix=CHECK
+; RUN: opt < %s  -loop-vectorize -mattr=avx,-slow-unaligned-mem-32 -S | FileCheck %s --check-prefix=FASTMEM32 --check-prefix=CHECK
 
 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-apple-macosx10.8.0"
 
-;CHECK-LABEL: @read_mod_write_single_ptr(
-;CHECK: load <8 x float>
-;CHECK: ret i32
+; CHECK-LABEL: @read_mod_write_single_ptr(
+; CHECK: load <8 x float>
+; CHECK: ret i32
 define i32 @read_mod_write_single_ptr(float* nocapture %a, i32 %n) nounwind uwtable ssp {
   %1 = icmp sgt i32 %n, 0
   br i1 %1, label %.lr.ph, label %._crit_edge
@@ -25,10 +26,11 @@ define i32 @read_mod_write_single_ptr(fl
   ret i32 undef
 }
 
+;;; FIXME: If 32-byte accesses are fast, this should use a <4 x i64> load.
 
-;CHECK-LABEL: @read_mod_i64(
-;CHECK: load <2 x i64>
-;CHECK: ret i32
+; CHECK-LABEL: @read_mod_i64(
+; CHECK: load <2 x i64>
+; CHECK: ret i32
 define i32 @read_mod_i64(i64* nocapture %a, i32 %n) nounwind uwtable ssp {
   %1 = icmp sgt i32 %n, 0
   br i1 %1, label %.lr.ph, label %._crit_edge
@@ -47,3 +49,4 @@ define i32 @read_mod_i64(i64* nocapture
 ._crit_edge:                                      ; preds = %.lr.ph, %0
   ret i32 undef
 }
+