diff options
Diffstat (limited to 'meta-xilinx/meta-microblaze/recipes-devtools/gcc/gcc-10/0020-Patch-microblaze-8-stage-pipeline-for-microblaze.patch')
| -rw-r--r-- | meta-xilinx/meta-microblaze/recipes-devtools/gcc/gcc-10/0020-Patch-microblaze-8-stage-pipeline-for-microblaze.patch | 178 |
1 files changed, 0 insertions, 178 deletions
diff --git a/meta-xilinx/meta-microblaze/recipes-devtools/gcc/gcc-10/0020-Patch-microblaze-8-stage-pipeline-for-microblaze.patch b/meta-xilinx/meta-microblaze/recipes-devtools/gcc/gcc-10/0020-Patch-microblaze-8-stage-pipeline-for-microblaze.patch deleted file mode 100644 index 07cf635de..000000000 --- a/meta-xilinx/meta-microblaze/recipes-devtools/gcc/gcc-10/0020-Patch-microblaze-8-stage-pipeline-for-microblaze.patch +++ /dev/null @@ -1,178 +0,0 @@ -From bfdb38133201f7df01d09dc7e7ee3043a35c1d3e Mon Sep 17 00:00:00 2001 -From: Mahesh Bodapati <mbodapat@xilinx.com> -Date: Mon, 9 Nov 2020 19:54:39 +0530 -Subject: [PATCH 20/54] [Patch, microblaze]: 8-stage pipeline for microblaze - -This patch adds the support for the 8-stage pipeline. The new 8-stage -pipeline reduces the latencies of float & integer division drastically - -Signed-off-by :Nagaraju Mekala <nmekala@xilix.com> ---- - gcc/config/microblaze/microblaze.c | 11 ++++ - gcc/config/microblaze/microblaze.h | 3 +- - gcc/config/microblaze/microblaze.md | 79 +++++++++++++++++++++++++++- - gcc/config/microblaze/microblaze.opt | 4 ++ - 4 files changed, 94 insertions(+), 3 deletions(-) - -diff --git a/gcc/config/microblaze/microblaze.c b/gcc/config/microblaze/microblaze.c -index 0a4619eec0c..0dc96e481b7 100644 ---- a/gcc/config/microblaze/microblaze.c -+++ b/gcc/config/microblaze/microblaze.c -@@ -1840,6 +1840,17 @@ microblaze_option_override (void) - "%<-mcpu=v8.30.a%>"); - TARGET_REORDER = 0; - } -+ ver = microblaze_version_to_int("v10.0"); -+ if (ver < 0) -+ { -+ if (TARGET_AREA_OPTIMIZED_2) -+ warning (0, "-mxl-frequency can be used only with -mcpu=v10.0 or greater"); -+ } -+ else -+ { -+ if (TARGET_AREA_OPTIMIZED_2) -+ microblaze_pipe = MICROBLAZE_PIPE_8; -+ } - - if (TARGET_MULTIPLY_HIGH && TARGET_SOFT_MUL) - error ("%<-mxl-multiply-high%> requires %<-mno-xl-soft-mul%>"); -diff --git a/gcc/config/microblaze/microblaze.h b/gcc/config/microblaze/microblaze.h -index 8aa3f155790..8a668278337 100644 ---- a/gcc/config/microblaze/microblaze.h -+++ b/gcc/config/microblaze/microblaze.h -@@ -27,7 +27,8 @@ - enum pipeline_type - { - MICROBLAZE_PIPE_3 = 0, -- MICROBLAZE_PIPE_5 = 1 -+ MICROBLAZE_PIPE_5 = 1, -+ MICROBLAZE_PIPE_8 = 2 - }; - - #define MICROBLAZE_MASK_NO_UNSAFE_DELAY 0x00000001 -diff --git a/gcc/config/microblaze/microblaze.md b/gcc/config/microblaze/microblaze.md -index be8bbda2bfb..c407a81c51e 100644 ---- a/gcc/config/microblaze/microblaze.md -+++ b/gcc/config/microblaze/microblaze.md -@@ -35,6 +35,7 @@ - (R_GOT 20) ;; GOT ptr reg - (MB_PIPE_3 0) ;; Microblaze 3-stage pipeline - (MB_PIPE_5 1) ;; Microblaze 5-stage pipeline -+ (MB_PIPE_8 2) ;; Microblaze 8-stage pipeline - (UNSPEC_SET_GOT 101) ;; - (UNSPEC_GOTOFF 102) ;; GOT offset - (UNSPEC_PLT 103) ;; jump table -@@ -82,7 +83,7 @@ - ;; bshift Shift operations - - (define_attr "type" -- "unknown,branch,jump,call,load,store,move,arith,darith,imul,idiv,icmp,multi,nop,no_delay_arith,no_delay_load,no_delay_store,no_delay_imul,no_delay_move,bshift,fadd,frsub,fmul,fdiv,fcmp,fsl,fsqrt,fcvt,trap" -+ "unknown,branch,jump,call,load,store,move,arith,darith,imul,idiv,icmp,multi,nop,no_delay_arith,no_delay_load,no_delay_store,no_delay_imul,no_delay_move,bshift,fadd,frsub,fmul,fdiv,fcmp,fsl,fsqrt,fcvt,fint,trap" - (const_string "unknown")) - - ;; Main data type used by the insn -@@ -224,6 +225,80 @@ - ;;----------------------------------------------------------------- - - -+ -+;;---------------------------------------------------------------- -+;; Microblaze 8-stage pipeline description (v10.0 and later) -+;;---------------------------------------------------------------- -+ -+(define_automaton "mbpipe_8") -+(define_cpu_unit "mb8_issue,mb8_iu,mb8_wb,mb8_fpu,mb8_fpu_2,mb8_mul,mb8_mul_2,mb8_div,mb8_div_2,mb8_bs,mb8_bs_2" "mbpipe_8") -+ -+(define_insn_reservation "mb8-integer" 1 -+ (and (eq_attr "type" "branch,jump,call,arith,darith,icmp,nop,no_delay_arith") -+ (eq (symbol_ref "microblaze_pipe") (const_int MB_PIPE_8))) -+ "mb8_issue,mb8_iu,mb8_wb") -+ -+(define_insn_reservation "mb8-special-move" 2 -+ (and (eq_attr "type" "move") -+ (eq (symbol_ref "microblaze_pipe") (const_int MB_PIPE_8))) -+ "mb8_issue,mb8_iu*2,mb8_wb") -+ -+(define_insn_reservation "mb8-mem-load" 3 -+ (and (eq_attr "type" "load,no_delay_load") -+ (eq (symbol_ref "microblaze_pipe") (const_int MB_PIPE_8))) -+ "mb8_issue,mb8_iu,mb8_wb") -+ -+(define_insn_reservation "mb8-mem-store" 1 -+ (and (eq_attr "type" "store,no_delay_store") -+ (eq (symbol_ref "microblaze_pipe") (const_int MB_PIPE_8))) -+ "mb8_issue,mb8_iu,mb8_wb") -+ -+(define_insn_reservation "mb8-mul" 3 -+ (and (eq_attr "type" "imul,no_delay_imul") -+ (eq (symbol_ref "microblaze_pipe") (const_int MB_PIPE_8))) -+ "mb8_issue,mb8_mul,mb8_mul_2*2,mb8_wb") -+ -+(define_insn_reservation "mb8-div" 30 -+ (and (eq_attr "type" "idiv") -+ (eq (symbol_ref "microblaze_pipe") (const_int MB_PIPE_8))) -+ "mb8_issue,mb8_div,mb8_div_2*29,mb8_wb") -+ -+(define_insn_reservation "mb8-bs" 2 -+ (and (eq_attr "type" "bshift") -+ (eq (symbol_ref "microblaze_pipe") (const_int MB_PIPE_8))) -+ "mb8_issue,mb8_bs,mb8_bs_2,mb8_wb") -+ -+(define_insn_reservation "mb8-fpu-add-sub-mul" 1 -+ (and (eq_attr "type" "fadd,frsub,fmul") -+ (eq (symbol_ref "microblaze_pipe") (const_int MB_PIPE_8))) -+ "mb8_issue,mb8_fpu,mb8_wb") -+ -+(define_insn_reservation "mb8-fpu-fcmp" 3 -+ (and (eq_attr "type" "fcmp") -+ (eq (symbol_ref "microblaze_pipe") (const_int MB_PIPE_8))) -+ "mb8_issue,mb8_fpu,mb8_fpu*2,mb8_wb") -+ -+(define_insn_reservation "mb8-fpu-div" 24 -+ (and (eq_attr "type" "fdiv") -+ (eq (symbol_ref "microblaze_pipe") (const_int MB_PIPE_8))) -+ "mb8_issue,mb8_fpu,mb8_fpu_2*23,mb8_wb") -+ -+(define_insn_reservation "mb8-fpu-sqrt" 23 -+ (and (eq_attr "type" "fsqrt") -+ (eq (symbol_ref "microblaze_pipe") (const_int MB_PIPE_8))) -+ "mb8_issue,mb8_fpu,mb8_fpu_2*22,mb8_wb") -+ -+(define_insn_reservation "mb8-fpu-fcvt" 1 -+ (and (eq_attr "type" "fcvt") -+ (eq (symbol_ref "microblaze_pipe") (const_int MB_PIPE_8))) -+ "mb8_issue,mb8_fpu,mb8_wb") -+ -+(define_insn_reservation "mb8-fpu-fint" 2 -+ (and (eq_attr "type" "fint") -+ (eq (symbol_ref "microblaze_pipe") (const_int MB_PIPE_8))) -+ "mb8_issue,mb8_fpu,mb8_wb") -+ -+ - ;;---------------------------------------------------------------- - ;; Microblaze 5-stage pipeline description (v5.00.a and later) - ;;---------------------------------------------------------------- -@@ -470,7 +545,7 @@ - (fix:SI (match_operand:SF 1 "register_operand" "d")))] - "TARGET_HARD_FLOAT && TARGET_FLOAT_CONVERT" - "fint\t%0,%1" -- [(set_attr "type" "fcvt") -+ [(set_attr "type" "fint") - (set_attr "mode" "SF") - (set_attr "length" "4")]) - -diff --git a/gcc/config/microblaze/microblaze.opt b/gcc/config/microblaze/microblaze.opt -index 725c2fab52a..a29c6f8df90 100644 ---- a/gcc/config/microblaze/microblaze.opt -+++ b/gcc/config/microblaze/microblaze.opt -@@ -133,3 +133,7 @@ Data referenced by offset from start of text instead of GOT (with -fPIC/-fPIE). - - mxl-mode-xilkernel - Target -+ -+mxl-frequency -+Target Mask(AREA_OPTIMIZED_2) -+Use 8 stage pipeline (frequency optimization) --- -2.17.1 - |