[llvm] r344573 - [X86] Remove some isel patterns that shouldn't be possible.

[Craig Topper via llvm-commits]

Author: ctopper
Date: Mon Oct 15 16:34:58 2018
New Revision: 344573

URL: http://llvm.org/viewvc/llvm-project?rev=344573&view=rev
Log:
[X86] Remove some isel patterns that shouldn't be possible.

These included a bitcast of a load from v4f32 to v2f64, but DAG combine should have already changed the type of the load to remove the cast.

Modified:
    llvm/trunk/lib/Target/X86/X86InstrAVX512.td
    llvm/trunk/lib/Target/X86/X86InstrSSE.td

Modified: llvm/trunk/lib/Target/X86/X86InstrAVX512.td
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86InstrAVX512.td?rev=344573&r1=344572&r2=344573&view=diff
==============================================================================
--- llvm/trunk/lib/Target/X86/X86InstrAVX512.td (original)
+++ llvm/trunk/lib/Target/X86/X86InstrAVX512.td Mon Oct 15 16:34:58 2018
@@ -4421,8 +4421,6 @@ let Predicates = [HasAVX512] in {
             (COPY_TO_REGCLASS (VMOVSDZrm addr:$src), VR128X)>;
   def : Pat<(v2f64 (X86vzmovl (loadv2f64 addr:$src))),
             (COPY_TO_REGCLASS (VMOVSDZrm addr:$src), VR128X)>;
-  def : Pat<(v2f64 (X86vzmovl (bc_v2f64 (loadv4f32 addr:$src)))),
-            (COPY_TO_REGCLASS (VMOVSDZrm addr:$src), VR128X)>;
   def : Pat<(v2f64 (X86vzload addr:$src)),
             (COPY_TO_REGCLASS (VMOVSDZrm addr:$src), VR128X)>;
 

Modified: llvm/trunk/lib/Target/X86/X86InstrSSE.td
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86InstrSSE.td?rev=344573&r1=344572&r2=344573&view=diff
==============================================================================
--- llvm/trunk/lib/Target/X86/X86InstrSSE.td (original)
+++ llvm/trunk/lib/Target/X86/X86InstrSSE.td Mon Oct 15 16:34:58 2018
@@ -265,8 +265,6 @@ let Predicates = [UseAVX] in {
             (COPY_TO_REGCLASS (VMOVSDrm addr:$src), VR128)>;
   def : Pat<(v2f64 (X86vzmovl (loadv2f64 addr:$src))),
             (COPY_TO_REGCLASS (VMOVSDrm addr:$src), VR128)>;
-  def : Pat<(v2f64 (X86vzmovl (bc_v2f64 (loadv4f32 addr:$src)))),
-            (COPY_TO_REGCLASS (VMOVSDrm addr:$src), VR128)>;
   def : Pat<(v2f64 (X86vzload addr:$src)),
             (COPY_TO_REGCLASS (VMOVSDrm addr:$src), VR128)>;
 
@@ -349,8 +347,6 @@ let Predicates = [UseSSE2] in {
             (COPY_TO_REGCLASS (MOVSDrm addr:$src), VR128)>;
   def : Pat<(v2f64 (X86vzmovl (loadv2f64 addr:$src))),
             (COPY_TO_REGCLASS (MOVSDrm addr:$src), VR128)>;
-  def : Pat<(v2f64 (X86vzmovl (bc_v2f64 (loadv4f32 addr:$src)))),
-            (COPY_TO_REGCLASS (MOVSDrm addr:$src), VR128)>;
   def : Pat<(v2f64 (X86vzload addr:$src)),
             (COPY_TO_REGCLASS (MOVSDrm addr:$src), VR128)>;
 }