commit 70564a9c194aa7c86c94227639de4037bbc3cbe8
author Akira Hatanaka <ahatanak@gmail.com> Tue Jul 19 18:14:26 2011 +0000
committer Akira Hatanaka <ahatanak@gmail.com> Tue Jul 19 18:14:26 2011 +0000
tree b4e4f28204137fdae66ae08f5914d325a19262aa
parent 81b441151fcbf998862adec79540bed049bbfa81

Remove redundant instructions.
- In EmitAtomicBinaryPartword, mask incr in loopMBB only if atomic.swap is the
  instruction being expanded, instead of masking it in thisMBB. 
- Remove redundant Or in EmitAtomicCmpSwap. 



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135495 91177308-0d34-0410-b5e6-96231b3b80d8

test/CodeGen/Mips/atomic.ll

diff --git a/test/CodeGen/Mips/atomic.ll b/test/CodeGen/Mips/atomic.ll
index f9e7e6f..9e1a635 100644
--- a/test/CodeGen/Mips/atomic.ll
+++ b/test/CodeGen/Mips/atomic.ll
@@ -73,8 +73,7 @@
 ; CHECK:   $[[BB0:[A-Z_0-9]+]]:
 ; CHECK:   ll      $2, 0($[[R0]])
 ; CHECK:   bne     $2, $4, $[[BB1:[A-Z_0-9]+]]
-; CHECK:   or      $[[R2:[0-9]+]], $zero, $5
-; CHECK:   sc      $[[R2]], 0($[[R0]])
+; CHECK:   sc      $[[R2:[0-9]+]], 0($[[R0]])
 ; CHECK:   beq     $[[R2]], $zero, $[[BB0]]
 ; CHECK:   $[[BB1]]:
 }
@@ -97,8 +96,7 @@
 ; CHECK:   ori     $[[R5:[0-9]+]], $zero, 255
 ; CHECK:   sll     $[[R6:[0-9]+]], $[[R5]], $[[R4]]
 ; CHECK:   nor     $[[R7:[0-9]+]], $zero, $[[R6]]
-; CHECK:   andi    $[[R8:[0-9]+]], $4, 255
-; CHECK:   sll     $[[R9:[0-9]+]], $[[R8]], $[[R4]]
+; CHECK:   sll     $[[R9:[0-9]+]], $4, $[[R4]]
 
 ; CHECK:   $[[BB0:[A-Z_0-9]+]]:
 ; CHECK:   ll      $[[R10:[0-9]+]], 0($[[R2]])
@@ -129,8 +127,7 @@
 ; CHECK:   ori     $[[R5:[0-9]+]], $zero, 255
 ; CHECK:   sll     $[[R6:[0-9]+]], $[[R5]], $[[R4]]
 ; CHECK:   nor     $[[R7:[0-9]+]], $zero, $[[R6]]
-; CHECK:   andi    $[[R8:[0-9]+]], $4, 255
-; CHECK:   sll     $[[R9:[0-9]+]], $[[R8]], $[[R4]]
+; CHECK:   sll     $[[R9:[0-9]+]], $4, $[[R4]]
 
 ; CHECK:   $[[BB0:[A-Z_0-9]+]]:
 ; CHECK:   ll      $[[R10:[0-9]+]], 0($[[R2]])
@@ -161,8 +158,7 @@
 ; CHECK:   ori     $[[R5:[0-9]+]], $zero, 255
 ; CHECK:   sll     $[[R6:[0-9]+]], $[[R5]], $[[R4]]
 ; CHECK:   nor     $[[R7:[0-9]+]], $zero, $[[R6]]
-; CHECK:   andi    $[[R8:[0-9]+]], $4, 255
-; CHECK:   sll     $[[R9:[0-9]+]], $[[R8]], $[[R4]]
+; CHECK:   sll     $[[R9:[0-9]+]], $4, $[[R4]]
 
 ; CHECK:   $[[BB0:[A-Z_0-9]+]]:
 ; CHECK:   ll      $[[R10:[0-9]+]], 0($[[R2]])
@@ -194,8 +190,7 @@
 ; CHECK:   ori     $[[R5:[0-9]+]], $zero, 255
 ; CHECK:   sll     $[[R6:[0-9]+]], $[[R5]], $[[R4]]
 ; CHECK:   nor     $[[R7:[0-9]+]], $zero, $[[R6]]
-; CHECK:   andi    $[[R8:[0-9]+]], $4, 255
-; CHECK:   sll     $[[R9:[0-9]+]], $[[R8]], $[[R4]]
+; CHECK:   sll     $[[R9:[0-9]+]], $4, $[[R4]]
 
 ; CHECK:   $[[BB0:[A-Z_0-9]+]]:
 ; CHECK:   ll      $[[R10:[0-9]+]], 0($[[R2]])