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-rw-r--r--meta-xilinx-bsp/recipes-microblaze/gcc/gcc-8/0042-re-arrangement-of-the-compare-branches.patch268
1 files changed, 268 insertions, 0 deletions
diff --git a/meta-xilinx-bsp/recipes-microblaze/gcc/gcc-8/0042-re-arrangement-of-the-compare-branches.patch b/meta-xilinx-bsp/recipes-microblaze/gcc/gcc-8/0042-re-arrangement-of-the-compare-branches.patch
new file mode 100644
index 00000000..c33b247b
--- /dev/null
+++ b/meta-xilinx-bsp/recipes-microblaze/gcc/gcc-8/0042-re-arrangement-of-the-compare-branches.patch
@@ -0,0 +1,268 @@
+From 9e45ca7bd65fe327e01e93d3c539c9d8cf049b79 Mon Sep 17 00:00:00 2001
+From: Nagaraju Mekala <nmekala@xilix.com>
+Date: Fri, 3 Aug 2018 15:41:39 +0530
+Subject: [PATCH 42/54] re-arrangement of the compare branches
+
+---
+ gcc/config/microblaze/microblaze.c | 28 ++-----
+ gcc/config/microblaze/microblaze.md | 141 +++++++++++++++++-------------------
+ 2 files changed, 73 insertions(+), 96 deletions(-)
+
+diff --git a/gcc/config/microblaze/microblaze.c b/gcc/config/microblaze/microblaze.c
+index ba7ade4..fab79d9 100644
+--- a/gcc/config/microblaze/microblaze.c
++++ b/gcc/config/microblaze/microblaze.c
+@@ -3695,11 +3695,7 @@ microblaze_expand_conditional_branch (machine_mode mode, rtx operands[])
+ {
+ comp_reg = cmp_op0;
+ condition = gen_rtx_fmt_ee (signed_condition (code), mode, comp_reg, const0_rtx);
+- if (mode == Pmode)
+- emit_jump_insn (gen_condjump (condition, label1));
+- else
+- emit_jump_insn (gen_long_condjump (condition, label1));
+-
++ emit_jump_insn (gen_condjump (condition, label1));
+ }
+
+ else if (code == EQ || code == NE)
+@@ -3710,10 +3706,7 @@ microblaze_expand_conditional_branch (machine_mode mode, rtx operands[])
+ else
+ emit_insn (gen_xordi3 (comp_reg, cmp_op0, cmp_op1));
+ condition = gen_rtx_fmt_ee (signed_condition (code), mode, comp_reg, const0_rtx);
+- if (mode == SImode)
+- emit_jump_insn (gen_condjump (condition, label1));
+- else
+- emit_jump_insn (gen_long_condjump (condition, label1));
++ emit_jump_insn (gen_condjump (condition, label1));
+ }
+ else
+ {
+@@ -3746,10 +3739,7 @@ microblaze_expand_conditional_branch_reg (machine_mode mode, rtx operands[])
+ comp_reg = cmp_op0;
+ condition = gen_rtx_fmt_ee (signed_condition (code),
+ mode, comp_reg, const0_rtx);
+- if (mode == SImode)
+- emit_jump_insn (gen_condjump (condition, label1));
+- else
+- emit_jump_insn (gen_long_condjump (condition, label1));
++ emit_jump_insn (gen_condjump (condition, label1));
+ }
+ else if (code == EQ)
+ {
+@@ -3764,10 +3754,7 @@ microblaze_expand_conditional_branch_reg (machine_mode mode, rtx operands[])
+ cmp_op1));
+ }
+ condition = gen_rtx_EQ (mode, comp_reg, const0_rtx);
+- if (mode == SImode)
+- emit_jump_insn (gen_condjump (condition, label1));
+- else
+- emit_jump_insn (gen_long_condjump (condition, label1));
++ emit_jump_insn (gen_condjump (condition, label1));
+
+ }
+ else if (code == NE)
+@@ -3783,10 +3770,7 @@ microblaze_expand_conditional_branch_reg (machine_mode mode, rtx operands[])
+ cmp_op1));
+ }
+ condition = gen_rtx_NE (mode, comp_reg, const0_rtx);
+- if (mode == SImode)
+- emit_jump_insn (gen_condjump (condition, label1));
+- else
+- emit_jump_insn (gen_long_condjump (condition, label1));
++ emit_jump_insn (gen_condjump (condition, label1));
+ }
+ else
+ {
+@@ -3828,7 +3812,7 @@ microblaze_expand_conditional_branch_df (rtx operands[])
+
+ emit_insn (gen_cstoredf4 (comp_reg, operands[0], cmp_op0, cmp_op1));
+ condition = gen_rtx_NE (Pmode, comp_reg, const0_rtx);
+- emit_jump_insn (gen_long_condjump (condition, operands[3]));
++ emit_jump_insn (gen_condjump (condition, operands[3]));
+ }
+
+ /* Implement TARGET_FRAME_POINTER_REQUIRED. */
+diff --git a/gcc/config/microblaze/microblaze.md b/gcc/config/microblaze/microblaze.md
+index 0f41ac6..2213d6e 100644
+--- a/gcc/config/microblaze/microblaze.md
++++ b/gcc/config/microblaze/microblaze.md
+@@ -2268,7 +2268,27 @@ else
+ (label_ref (match_operand 1))
+ (pc)))])
+
+-(define_insn "branch_zero64"
++(define_insn "branch_zero_64"
++ [(set (pc)
++ (if_then_else (match_operator:SI 0 "ordered_comparison_operator"
++ [(match_operand:SI 1 "register_operand" "d")
++ (const_int 0)])
++ (match_operand:SI 2 "pc_or_label_operand" "")
++ (match_operand:SI 3 "pc_or_label_operand" "")))
++ ]
++ "TARGET_MB_64"
++ {
++ if (operands[3] == pc_rtx)
++ return "bea%C0i%?\t%z1,%2";
++ else
++ return "bea%N0i%?\t%z1,%3";
++ }
++ [(set_attr "type" "branch")
++ (set_attr "mode" "none")
++ (set_attr "length" "4")]
++)
++
++(define_insn "long_branch_zero"
+ [(set (pc)
+ (if_then_else (match_operator 0 "ordered_comparison_operator"
+ [(match_operand 1 "register_operand" "d")
+@@ -2279,9 +2299,9 @@ else
+ "TARGET_MB_64"
+ {
+ if (operands[3] == pc_rtx)
+- return "bea%C0i%?\t%z1,%2";
++ return "beal%C0i%?\t%z1,%2";
+ else
+- return "bea%N0i%?\t%z1,%3";
++ return "beal%N0i%?\t%z1,%3";
+ }
+ [(set_attr "type" "branch")
+ (set_attr "mode" "none")
+@@ -2310,9 +2330,9 @@ else
+
+ (define_insn "branch_compare64"
+ [(set (pc)
+- (if_then_else (match_operator 0 "cmp_op"
+- [(match_operand 1 "register_operand" "d")
+- (match_operand 2 "register_operand" "d")
++ (if_then_else (match_operator:SI 0 "cmp_op"
++ [(match_operand:SI 1 "register_operand" "d")
++ (match_operand:SI 2 "register_operand" "d")
+ ])
+ (label_ref (match_operand 3))
+ (pc)))
+@@ -2349,6 +2369,47 @@ else
+ (set_attr "length" "12")]
+ )
+
++(define_insn "long_branch_compare"
++ [(set (pc)
++ (if_then_else (match_operator 0 "cmp_op"
++ [(match_operand 1 "register_operand" "d")
++ (match_operand 2 "register_operand" "d")
++ ])
++ (label_ref (match_operand 3))
++ (pc)))
++ (clobber(reg:DI R_TMP))]
++ "TARGET_MB_64"
++ {
++ operands[4] = gen_rtx_REG (DImode, MB_ABI_ASM_TEMP_REGNUM);
++ enum rtx_code code = GET_CODE (operands[0]);
++
++ if (code == GT || code == LE)
++ {
++ output_asm_insn ("cmpl\tr18,%z1,%z2", operands);
++ code = swap_condition (code);
++ }
++ else if (code == GTU || code == LEU)
++ {
++ output_asm_insn ("cmplu\tr18,%z1,%z2", operands);
++ code = swap_condition (code);
++ }
++ else if (code == GE || code == LT)
++ {
++ output_asm_insn ("cmpl\tr18,%z2,%z1", operands);
++ }
++ else if (code == GEU || code == LTU)
++ {
++ output_asm_insn ("cmplu\tr18,%z2,%z1", operands);
++ }
++
++ operands[0] = gen_rtx_fmt_ee (signed_condition (code), DImode, operands[4], const0_rtx);
++ return "beal%C0i%?\tr18,%3";
++ }
++ [(set_attr "type" "branch")
++ (set_attr "mode" "none")
++ (set_attr "length" "12")]
++)
++
+ (define_insn "branch_compare"
+ [(set (pc)
+ (if_then_else (match_operator:SI 0 "cmp_op"
+@@ -2431,74 +2492,6 @@ else
+
+ })
+
+-;; Used to implement comparison instructions
+-(define_expand "long_condjump"
+- [(set (pc)
+- (if_then_else (match_operand 0)
+- (label_ref (match_operand 1))
+- (pc)))])
+-
+-(define_insn "long_branch_zero"
+- [(set (pc)
+- (if_then_else (match_operator:DI 0 "ordered_comparison_operator"
+- [(match_operand:DI 1 "register_operand" "d")
+- (const_int 0)])
+- (match_operand:DI 2 "pc_or_label_operand" "")
+- (match_operand:DI 3 "pc_or_label_operand" "")))
+- ]
+- "TARGET_MB_64"
+- {
+- if (operands[3] == pc_rtx)
+- return "beal%C0i%?\t%z1,%2";
+- else
+- return "beal%N0i%?\t%z1,%3";
+- }
+- [(set_attr "type" "branch")
+- (set_attr "mode" "none")
+- (set_attr "length" "4")]
+-)
+-
+-(define_insn "long_branch_compare"
+- [(set (pc)
+- (if_then_else (match_operator:DI 0 "cmp_op"
+- [(match_operand:DI 1 "register_operand" "d")
+- (match_operand:DI 2 "register_operand" "d")
+- ])
+- (label_ref (match_operand 3))
+- (pc)))
+- (clobber(reg:DI R_TMP))]
+- "TARGET_MB_64"
+- {
+- operands[4] = gen_rtx_REG (DImode, MB_ABI_ASM_TEMP_REGNUM);
+- enum rtx_code code = GET_CODE (operands[0]);
+-
+- if (code == GT || code == LE)
+- {
+- output_asm_insn ("cmpl\tr18,%z1,%z2", operands);
+- code = swap_condition (code);
+- }
+- else if (code == GTU || code == LEU)
+- {
+- output_asm_insn ("cmplu\tr18,%z1,%z2", operands);
+- code = swap_condition (code);
+- }
+- else if (code == GE || code == LT)
+- {
+- output_asm_insn ("cmpl\tr18,%z2,%z1", operands);
+- }
+- else if (code == GEU || code == LTU)
+- {
+- output_asm_insn ("cmplu\tr18,%z2,%z1", operands);
+- }
+-
+- operands[0] = gen_rtx_fmt_ee (signed_condition (code), DImode, operands[4], const0_rtx);
+- return "beal%C0i%?\tr18,%3";
+- }
+- [(set_attr "type" "branch")
+- (set_attr "mode" "none")
+- (set_attr "length" "12")]
+-)
+-
+ ;;----------------------------------------------------------------
+ ;; Unconditional branches
+ ;;----------------------------------------------------------------
+--
+2.7.4
+
generated by cgit 1.2.3-korg (git 2.39.0) at 2024-04-27 03:28:33 +0000