From f846bd900d5277dd9defb5fe0625f97e3417ee61 Mon Sep 17 00:00:00 2001
From: Mahesh Bodapati <mbodapat@xilinx.com>
Date: Tue, 17 Jan 2017 17:04:37 +0530
Subject: [PATCH 21/54] [Patch, microblaze]: Add cbranchsi4_reg This patch
 optimizes the generation of  pcmpne/pcmpeq instruction if the compare
 instruction has no immediate values.For the immediate values the xor
 instruction is generated

Signed-off-by: Nagaraju Mekala <nmekala@xilix.com>
Signed-off-by: Ajit Agarwal  <ajitkum@xilinx.com>

ChangeLog:
2015-01-13 Nagaraju Mekala <nmekala@xilix.com>
           Ajit Agarwal  <ajitkum@xilinx.com>

  *microblaze.md (cbranchsi4_reg): New
  *microblaze.c (microblaze_expand_conditional_branch_reg): New

Conflicts:

	gcc/config/microblaze/microblaze-protos.h
---
 gcc/config/microblaze/microblaze-protos.h                 |  2 +-
 gcc/testsuite/gcc.target/microblaze/isa/fcmp1.c           |  2 +-
 gcc/testsuite/gcc.target/microblaze/isa/fcmp2.c           |  2 +-
 gcc/testsuite/gcc.target/microblaze/isa/fcmp3.c           |  2 +-
 gcc/testsuite/gcc.target/microblaze/isa/fcmp4.c           |  2 +-
 gcc/testsuite/gcc.target/microblaze/isa/nofcmp.c          | 14 +++++++-------
 gcc/testsuite/gcc.target/microblaze/isa/vanilla.c         | 12 ++++++------
 gcc/testsuite/gcc.target/microblaze/others/builtin-trap.c |  2 +-
 8 files changed, 19 insertions(+), 19 deletions(-)

diff --git a/gcc/config/microblaze/microblaze-protos.h b/gcc/config/microblaze/microblaze-protos.h
index f8a56f7..c39e2e9 100644
--- a/gcc/config/microblaze/microblaze-protos.h
+++ b/gcc/config/microblaze/microblaze-protos.h
@@ -32,7 +32,7 @@ extern int microblaze_expand_shift (rtx *);
 extern bool microblaze_expand_move (machine_mode, rtx *);
 extern bool microblaze_expand_block_move (rtx, rtx, rtx, rtx);
 extern void microblaze_expand_divide (rtx *);
-extern void microblaze_expand_conditional_branch (machine_mode, rtx *);
+extern void microblaze_expand_conditional_branch (enum machine_mode, rtx *);
 extern void microblaze_expand_conditional_branch_reg (machine_mode, rtx *);
 extern void microblaze_expand_conditional_branch_sf (rtx *); 
 extern int microblaze_can_use_return_insn (void);
diff --git a/gcc/testsuite/gcc.target/microblaze/isa/fcmp1.c b/gcc/testsuite/gcc.target/microblaze/isa/fcmp1.c
index 4041a24..ccc6a46 100644
--- a/gcc/testsuite/gcc.target/microblaze/isa/fcmp1.c
+++ b/gcc/testsuite/gcc.target/microblaze/isa/fcmp1.c
@@ -6,5 +6,5 @@ void float_func ()
 {
   /* { dg-final { scan-assembler "fcmp\.(le|gt)\tr(\[0-9]\|\[1-2]\[0-9]\|3\[0-1]),r(\[0-9]\|\[1-2]\[0-9]\|3\[0-1]),r(\[0-9]\|\[1-2]\[0-9]\|3\[0-1])\[^0-9]" } } */
     if (f2 <= f3) 
-        print ("le");
+        f2 = f3;
 }
diff --git a/gcc/testsuite/gcc.target/microblaze/isa/fcmp2.c b/gcc/testsuite/gcc.target/microblaze/isa/fcmp2.c
index 3902b83..1dd5fe6 100644
--- a/gcc/testsuite/gcc.target/microblaze/isa/fcmp2.c
+++ b/gcc/testsuite/gcc.target/microblaze/isa/fcmp2.c
@@ -6,5 +6,5 @@ void float_func ()
 {
   /* { dg-final { scan-assembler "fcmp\.(lt|ge)\tr(\[0-9]\|\[1-2]\[0-9]\|3\[0-1]),r(\[0-9]\|\[1-2]\[0-9]\|3\[0-1]),r(\[0-9]\|\[1-2]\[0-9]\|3\[0-1])\[^0-9]" } } */
     if (f2 < f3) 
-        print ("lt");
+        f2 = f3;
 }
diff --git a/gcc/testsuite/gcc.target/microblaze/isa/fcmp3.c b/gcc/testsuite/gcc.target/microblaze/isa/fcmp3.c
index 8555974..d6f80fb 100644
--- a/gcc/testsuite/gcc.target/microblaze/isa/fcmp3.c
+++ b/gcc/testsuite/gcc.target/microblaze/isa/fcmp3.c
@@ -6,5 +6,5 @@ void float_func ()
 {
   /* { dg-final { scan-assembler "fcmp\.(eq|ne)\tr(\[0-9]\|\[1-2]\[0-9]\|3\[0-1]),r(\[0-9]\|\[1-2]\[0-9]\|3\[0-1]),r(\[0-9]\|\[1-2]\[0-9]\|3\[0-1])\[^0-9]" } } */
     if (f2 == f3) 
-        print ("eq");
+        f1 = f2 + f3;
 }
diff --git a/gcc/testsuite/gcc.target/microblaze/isa/fcmp4.c b/gcc/testsuite/gcc.target/microblaze/isa/fcmp4.c
index 79cc5f9..d117724 100644
--- a/gcc/testsuite/gcc.target/microblaze/isa/fcmp4.c
+++ b/gcc/testsuite/gcc.target/microblaze/isa/fcmp4.c
@@ -5,5 +5,5 @@ void float_func(float f1, float f2, float f3)
   /* { dg-final { scan-assembler "fcmp\.eq\tr(\[0-9]\|\[1-2]\[0-9]\|3\[0-1]),r(\[0-9]\|\[1-2]\[0-9]\|3\[0-1]),r(\[0-9]\|\[1-2]\[0-9]\|3\[0-1])\[^0-9]" } } */
   /* { dg-final { scan-assembler "fcmp\.le\tr(\[0-9]\|\[1-2]\[0-9]\|3\[0-1]),r(\[0-9]\|\[1-2]\[0-9]\|3\[0-1]),r(\[0-9]\|\[1-2]\[0-9]\|3\[0-1])\[^0-9]" } } */
     if(f1==f2 && f1<=f3)
-        print ("f1 eq f2 && f1 le f3");
+        f2 = f3;
 }
diff --git a/gcc/testsuite/gcc.target/microblaze/isa/nofcmp.c b/gcc/testsuite/gcc.target/microblaze/isa/nofcmp.c
index ebfb170..7582297 100644
--- a/gcc/testsuite/gcc.target/microblaze/isa/nofcmp.c
+++ b/gcc/testsuite/gcc.target/microblaze/isa/nofcmp.c
@@ -5,17 +5,17 @@ volatile float f1, f2, f3;
 void float_func () 
 {
     /* { dg-final { scan-assembler-not "fcmp" } } */
-    if (f2 <= f3) 
-        print ("le");
+    if (f2 <= f3)
+        f1 = f3;
     else if (f2 == f3) 
-        print ("eq");
+        f1 = f3;
     else if (f2 < f3) 
-        print ("lt");
+        f1 = f3;
     else if (f2 > f3) 
-        print ("gt");
+        f1 = f3;
     else if (f2 >= f3) 
-        print ("ge");
+        f1 = f3;
     else if (f2 != f3) 
-        print ("ne");
+        f1 = f3;
     
 }
diff --git a/gcc/testsuite/gcc.target/microblaze/isa/vanilla.c b/gcc/testsuite/gcc.target/microblaze/isa/vanilla.c
index 1d6ba80..532c035 100644
--- a/gcc/testsuite/gcc.target/microblaze/isa/vanilla.c
+++ b/gcc/testsuite/gcc.target/microblaze/isa/vanilla.c
@@ -74,16 +74,16 @@ void float_cmp_func ()
 {
     /* { dg-final { scan-assembler-not "fcmp" } } */
     if (f2 <= f3) 
-        print ("le");
+        f1 = f3;
     else if (f2 == f3) 
-        print ("eq");
+        f1 = f3;
     else if (f2 < f3) 
-        print ("lt");
+        f1 = f3;
     else if (f2 > f3) 
-        print ("gt");
+        f1 = f3;
     else if (f2 >= f3) 
-        print ("ge");
+        f1 = f3;
     else if (f2 != f3) 
-        print ("ne");
+        f1 = f3;
     
 }
diff --git a/gcc/testsuite/gcc.target/microblaze/others/builtin-trap.c b/gcc/testsuite/gcc.target/microblaze/others/builtin-trap.c
index fdcde1f..580b4db 100644
--- a/gcc/testsuite/gcc.target/microblaze/others/builtin-trap.c
+++ b/gcc/testsuite/gcc.target/microblaze/others/builtin-trap.c
@@ -5,4 +5,4 @@ void trap ()
   __builtin_trap ();
 }
 
-/* { dg-final { scan-assembler "brki\tr0,-1" } } */
\ No newline at end of file
+/* { dg-final { scan-assembler "bri\t0" } } */
-- 
2.7.4