From 642daf0c0c5630f34b72bd4362839389b36ff00c Mon Sep 17 00:00:00 2001
From: Daniel Sanders <daniel.sanders@imgtec.com>
Date: Mon, 13 Oct 2014 10:18:02 +0000
Subject: [mips] Mark redundant instructions with a comment in
 test/CodeGen/Mips/Fast-ISel/icmpa.ll.

llvm-svn: 219605
---
 llvm/test/CodeGen/Mips/Fast-ISel/icmpa.ll | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

(limited to 'llvm/test/CodeGen/Mips')

diff --git a/llvm/test/CodeGen/Mips/Fast-ISel/icmpa.ll b/llvm/test/CodeGen/Mips/Fast-ISel/icmpa.ll
index c4db6ecb472..bd41a2911dc 100644
--- a/llvm/test/CodeGen/Mips/Fast-ISel/icmpa.ll
+++ b/llvm/test/CodeGen/Mips/Fast-ISel/icmpa.ll
@@ -45,6 +45,7 @@ entry:
 ; CHECK-DAG:  lw	$[[REG_C:[0-9]+]], 0($[[REG_C_GOT]])
 ; CHECK:  xor  $[[REG1:[0-9]+]], $[[REG_C]], $[[REG_D]]
 ; CHECK:  sltu  $[[REG2:[0-9]+]], $zero, $[[REG1]]
+; FIXME: This instruction is redundant. The sltu can only produce 0 and 1.
 ; CHECK:  andi  ${{[0-9]+}}, $[[REG2]], 1
 
   store i32 %conv, i32* @b1, align 4
@@ -64,6 +65,7 @@ entry:
 ; CHECK-DAG:  lw	$[[REG_UD:[0-9]+]], 0($[[REG_UD_GOT]])
 ; CHECK-DAG:  lw	$[[REG_UC:[0-9]+]], 0($[[REG_UC_GOT]])
 ; CHECK:  sltu  $[[REG1:[0-9]+]], $[[REG_UD]], $[[REG_UC]]
+; FIXME: This instruction is redundant. The sltu can only produce 0 and 1.
 ; CHECK:  andi  ${{[0-9]+}}, $[[REG1]], 1
 
   store i32 %conv, i32* @b1, align 4
@@ -83,6 +85,7 @@ entry:
 ; CHECK-DAG:  lw	$[[REG_UD:[0-9]+]], 0($[[REG_UD_GOT]])
 ; CHECK-DAG:  lw	$[[REG_UC:[0-9]+]], 0($[[REG_UC_GOT]])
 ; CHECK:  sltu  $[[REG1:[0-9]+]], $[[REG_UC]], $[[REG_UD]]
+; FIXME: This instruction is redundant. The sltu can only produce 0 and 1.
 ; CHECK:  andi  ${{[0-9]+}}, $[[REG1]], 1
   store i32 %conv, i32* @b1, align 4
   ret void
@@ -102,6 +105,7 @@ entry:
 ; CHECK-DAG:  lw	$[[REG_UC:[0-9]+]], 0($[[REG_UC_GOT]])
 ; CHECK:  sltu  $[[REG1:[0-9]+]], $[[REG_UC]], $[[REG_UD]]
 ; CHECK:  xori  $[[REG2:[0-9]+]], $[[REG1]], 1
+; FIXME: This instruction is redundant. The sltu can only produce 0 and 1.
 ; CHECK:  andi  ${{[0-9]+}}, $[[REG2]], 1
   store i32 %conv, i32* @b1, align 4
   ret void
@@ -121,6 +125,7 @@ entry:
 ; CHECK-DAG:  lw	$[[REG_UC:[0-9]+]], 0($[[REG_UC_GOT]])
 ; CHECK:  sltu  $[[REG1:[0-9]+]], $[[REG_UD]], $[[REG_UC]]
 ; CHECK:  xori  $[[REG2:[0-9]+]], $[[REG1]], 1
+; FIXME: This instruction is redundant. The sltu can only produce 0 and 1.
 ; CHECK:  andi  ${{[0-9]+}}, $[[REG2]], 1
   store i32 %conv, i32* @b1, align 4
   ret void
@@ -139,6 +144,7 @@ entry:
 ; CHECK-DAG:  lw	$[[REG_D:[0-9]+]], 0($[[REG_D_GOT]])
 ; CHECK-DAG:  lw	$[[REG_C:[0-9]+]], 0($[[REG_C_GOT]])
 ; CHECK:  slt  $[[REG1:[0-9]+]], $[[REG_D]], $[[REG_C]]
+; FIXME: This instruction is redundant. The slt can only produce 0 and 1.
 ; CHECK:  andi  ${{[0-9]+}}, $[[REG1]], 1
   store i32 %conv, i32* @b1, align 4
   ret void
@@ -157,6 +163,7 @@ entry:
 ; CHECK-DAG:  lw	$[[REG_D:[0-9]+]], 0($[[REG_D_GOT]])
 ; CHECK-DAG:  lw	$[[REG_C:[0-9]+]], 0($[[REG_C_GOT]])
 ; CHECK:  slt  $[[REG1:[0-9]+]], $[[REG_C]], $[[REG_D]]
+; FIXME: This instruction is redundant. The slt can only produce 0 and 1.
 ; CHECK:  andi  ${{[0-9]+}}, $[[REG1]], 1
   store i32 %conv, i32* @b1, align 4
   ret void
@@ -177,6 +184,7 @@ entry:
 ; CHECK-DAG:  lw	$[[REG_C:[0-9]+]], 0($[[REG_C_GOT]])
 ; CHECK:  slt  $[[REG1:[0-9]+]], $[[REG_C]], $[[REG_D]]
 ; CHECK:  xori  $[[REG2:[0-9]+]], $[[REG1]], 1
+; FIXME: This instruction is redundant. The slt can only produce 0 and 1.
 ; CHECK:  andi  ${{[0-9]+}}, $[[REG2]], 1
   ret void
 }
@@ -195,9 +203,8 @@ entry:
 ; CHECK-DAG:  lw	$[[REG_C:[0-9]+]], 0($[[REG_C_GOT]])
 ; CHECK:        slt     $[[REG1:[0-9]+]], $[[REG_D]], $[[REG_C]]
 ; CHECK:        xori    $[[REG2:[0-9]+]], $[[REG1]], 1
+; FIXME: This instruction is redundant. The slt can only produce 0 and 1.
 ; CHECK:        andi    ${{[0-9]+}}, $[[REG2]], 1
   store i32 %conv, i32* @b1, align 4
   ret void
 }
-
-
-- 
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