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author | Jason M. Bills <jason.m.bills@linux.intel.com> | 2020-12-08 00:38:17 +0300 |
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committer | Jason M. Bills <jason.m.bills@linux.intel.com> | 2020-12-08 00:38:17 +0300 |
commit | 8d6ae7f2a817751fad151168fa10ce28ee0869d8 (patch) | |
tree | 281032f7ec07c41589aa094bd165cc2a98f2d3a7 /meta-xilinx/meta-microblaze/recipes-devtools/gcc/gcc-10/0051-Patch-Microblaze-Check-the-possibiity-of-peephole2-o.patch | |
parent | c16fb8893b19075db4bcf3b5bf33c1db8c3ca2bd (diff) | |
parent | 5da3c2284560a7e08ffafd03c5b5ba44a3242228 (diff) | |
download | openbmc-8d6ae7f2a817751fad151168fa10ce28ee0869d8.tar.xz |
Merge tag '0.26' of ssh://git-amr-1.devtools.intel.com:29418/openbmc-openbmc into update
Diffstat (limited to 'meta-xilinx/meta-microblaze/recipes-devtools/gcc/gcc-10/0051-Patch-Microblaze-Check-the-possibiity-of-peephole2-o.patch')
-rw-r--r-- | meta-xilinx/meta-microblaze/recipes-devtools/gcc/gcc-10/0051-Patch-Microblaze-Check-the-possibiity-of-peephole2-o.patch | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/meta-xilinx/meta-microblaze/recipes-devtools/gcc/gcc-10/0051-Patch-Microblaze-Check-the-possibiity-of-peephole2-o.patch b/meta-xilinx/meta-microblaze/recipes-devtools/gcc/gcc-10/0051-Patch-Microblaze-Check-the-possibiity-of-peephole2-o.patch new file mode 100644 index 000000000..6b7bb2a10 --- /dev/null +++ b/meta-xilinx/meta-microblaze/recipes-devtools/gcc/gcc-10/0051-Patch-Microblaze-Check-the-possibiity-of-peephole2-o.patch @@ -0,0 +1,89 @@ +From ed17f79b22769e5a256e3990715e32e943bfd929 Mon Sep 17 00:00:00 2001 +From: Mahesh Bodapati <mbodapat@xilinx.com> +Date: Fri, 29 Mar 2019 12:08:39 +0530 +Subject: [PATCH 51/58] [Patch,Microblaze] : Check the possibiity of peephole2 + opt + +We will check the possibility of peephole2 +optimization,if we can then we will fix the compiler issue. +--- + gcc/config/microblaze/microblaze.md | 63 +++++++++++++++++------------ + 1 file changed, 38 insertions(+), 25 deletions(-) + +diff --git a/gcc/config/microblaze/microblaze.md b/gcc/config/microblaze/microblaze.md +index a1363935c42..626eade9468 100644 +--- a/gcc/config/microblaze/microblaze.md ++++ b/gcc/config/microblaze/microblaze.md +@@ -882,31 +882,44 @@ + (set_attr "mode" "SI") + (set_attr "length" "4")]) + +-(define_peephole2 +- [(set (match_operand:SI 0 "register_operand") +- (fix:SI (match_operand:SF 1 "register_operand"))) +- (set (pc) +- (if_then_else (match_operator 2 "ordered_comparison_operator" +- [(match_operand:SI 3 "register_operand") +- (match_operand:SI 4 "arith_operand")]) +- (label_ref (match_operand 5)) +- (pc)))] +- "TARGET_HARD_FLOAT && !TARGET_MB_64" +- [(set (match_dup 1) (match_dup 3))] +- +- { +- rtx condition; +- rtx cmp_op0 = operands[3]; +- rtx cmp_op1 = operands[4]; +- rtx comp_reg = gen_rtx_REG (SImode, MB_ABI_ASM_TEMP_REGNUM); +- +- emit_insn (gen_cstoresf4 (comp_reg, operands[2], +- gen_rtx_REG (SFmode, REGNO (cmp_op0)), +- gen_rtx_REG (SFmode, REGNO (cmp_op1)))); +- condition = gen_rtx_NE (SImode, comp_reg, const0_rtx); +- emit_jump_insn (gen_condjump (condition, operands[5])); +- } +-) ++;; peephole2 optimization will be done only if fint and if-then-else ++;; are dependent.added condition for the same. ++;; if they are dependent then gcc is giving "flow control insn inside a basic block" ++;; testcase: ++;; volatile float vec = 1.0; ++;; volatile int ci = 2; ++;; register int cj = (int)(vec); ++;;// ci=cj; ++;;// if (ci <0) { ++;; if (cj < 0) { ++;; ci = 0; ++;; } ++;; commenting for now.we will check the possibility of this optimization later ++ ++;;(define_peephole2 ++;; [(set (match_operand:SI 0 "register_operand") ++;; (fix:SI (match_operand:SF 1 "register_operand"))) ++;; (set (pc) ++;; (if_then_else (match_operator 2 "ordered_comparison_operator" ++;; [(match_operand:SI 3 "register_operand") ++;; (match_operand:SI 4 "arith_operand")]) ++;; (label_ref (match_operand 5)) ++;; (pc)))] ++;; "TARGET_HARD_FLOAT && !TARGET_MB_64 && ((REGNO (operands[0])) == (REGNO (operands[3])))" ++;; [(set (match_dup 1) (match_dup 3))] ++;; { ++;; rtx condition; ++;; rtx cmp_op0 = operands[3]; ++;; rtx cmp_op1 = operands[4]; ++;; rtx comp_reg = gen_rtx_REG (SImode, MB_ABI_ASM_TEMP_REGNUM); ++;; ++;; emit_insn (gen_cstoresf4 (comp_reg, operands[2], ++;; gen_rtx_REG (SFmode, REGNO (cmp_op0)), ++;; gen_rtx_REG (SFmode, REGNO (cmp_op1)))); ++;; condition = gen_rtx_NE (SImode, comp_reg, const0_rtx); ++;; emit_jump_insn (gen_condjump (condition, operands[5])); ++;; } ++;;) + + ;;---------------------------------------------------------------- + ;; Negation and one's complement +-- +2.17.1 + |