[GlobalIsel][X86] Legalize G_SELECT

[tschuett]

Summary

arc issues again

[tschuett]

remove comments

[tschuett]

restore

[RKSimon]

@tschuett I'd highly recommend you use the web interface instead of arc: https://reviews.llvm.org/differential/diff/create/

llvm/lib/Target/X86/X86LegalizerInfo.cpp

getActionDefinitionsBuilder({G_SEXT, G_ZEXT, G_ANYEXT})
           (Query.Opcode == G_ANYEXT && Query.Types[0] == s128) ||
           (Is64Bit && Query.Types[0] == s64);
       })
     .widenScalarToNextPow2(0, /*Min=*/8)
     .clampScalar(0, s8, sMaxScalar)
     .widenScalarToNextPow2(1, /*Min=*/8)
     .clampScalar(1, s8, sMaxScalar);
 
-  // todo: vectors
+  // todo: vectors 
   getActionDefinitionsBuilder(G_SELECT)
     .legalFor({s8, s16, s32, s64, p0})
     .widenScalarToNextPow2(0, /*Min=*/8)
     .clampScalar(0, s8, sMaxScalar)
     .widenScalarToNextPow2(1, /*Min=*/8)
     .clampScalar(1, s8, sMaxScalar);
 
   setLegalizerInfo32bit();

llvm/test/CodeGen/X86/GlobalISel/legalize-select.mir

 # NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py UTC_ARGS: --version 2
 # RUN: llc -mtriple=i386-linux-gnu -run-pass=legalizer %s -o - | FileCheck %s --check-prefixes=CHECK,X86
 
-# test select
+# test select 
 
 ...
 ---
 name:            test_selectp0
 body:             |
   bb.1:
     ; CHECK-LABEL: name: test_selectp0
     ; CHECK: [[DEF:%[0-9]+]]:_(s1) = IMPLICIT_DEF