diff options
Diffstat (limited to 'meta-microblaze/recipes-devtools/gcc/gcc-12/0017-Patch-microblaze-Inline-Expansion-of-fsqrt-builtin.patch')
-rw-r--r-- | meta-microblaze/recipes-devtools/gcc/gcc-12/0017-Patch-microblaze-Inline-Expansion-of-fsqrt-builtin.patch | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/meta-microblaze/recipes-devtools/gcc/gcc-12/0017-Patch-microblaze-Inline-Expansion-of-fsqrt-builtin.patch b/meta-microblaze/recipes-devtools/gcc/gcc-12/0017-Patch-microblaze-Inline-Expansion-of-fsqrt-builtin.patch new file mode 100644 index 00000000..b0d33516 --- /dev/null +++ b/meta-microblaze/recipes-devtools/gcc/gcc-12/0017-Patch-microblaze-Inline-Expansion-of-fsqrt-builtin.patch @@ -0,0 +1,60 @@ +From 1593e5a9839b7cade95e9f55ba3cff66d64d0e84 Mon Sep 17 00:00:00 2001 +From: Mahesh Bodapati <mbodapat@xilinx.com> +Date: Tue, 17 Jan 2017 17:11:04 +0530 +Subject: [PATCH 17/53] [Patch,microblaze]: Inline Expansion of fsqrt builtin. + The changes are made in the patch for the inline expansion of the fsqrt + builtin with fqrt instruction. The sqrt math function takes double as + argument and return double as argument. The pattern is selected while + expanding the unary op through expand_unop which passes DFmode and the DFmode + pattern was not there returning zero. Thus the sqrt math function is not + inlined and expanded. The pattern with DFmode argument is added. Also the + source and destination argument is not same the DF through two different + consecutive registers with lower 32 bit is the argument passed to sqrt and + the higher 32 bit is zero. If the source and destinations are different the + DFmode 64 bits registers is not set properly giving the problem in runtime. + Such changes are taken care in the implementation of the pattern for DFmode + for inline expansion of the sqrt. + +ChangeLog: +2015-06-16 Ajit Agarwal <ajitkum@xilinx.com> + Nagaraju Mekala <nmekala@xilinx.com> + + * config/microblaze/microblaze.md (sqrtdf2): New + pattern. + +Upstream-Status: Pending + +Signed-off-by:Ajit Agarwal ajitkum@xilinx.com + Nagaraju Mekala nmekala@xilinx.com +--- + gcc/config/microblaze/microblaze.md | 14 ++++++++++++++ + 1 file changed, 14 insertions(+) + +diff --git a/gcc/config/microblaze/microblaze.md b/gcc/config/microblaze/microblaze.md +index 52308cce0cb..0e5ef4d7649 100644 +--- a/gcc/config/microblaze/microblaze.md ++++ b/gcc/config/microblaze/microblaze.md +@@ -451,6 +451,20 @@ + (set_attr "mode" "SF") + (set_attr "length" "4")]) + ++(define_insn "sqrtdf2" ++ [(set (match_operand:DF 0 "register_operand" "=d") ++ (sqrt:DF (match_operand:DF 1 "register_operand" "dG")))] ++ "TARGET_HARD_FLOAT && TARGET_FLOAT_SQRT" ++ { ++ if (REGNO (operands[0]) == REGNO (operands[1])) ++ return "fsqrt\t%0,%1"; ++ else ++ return "fsqrt\t%0,%1\n\taddk\t%D0,%D1,r0"; ++ } ++ [(set_attr "type" "fsqrt") ++ (set_attr "mode" "SF") ++ (set_attr "length" "4")]) ++ + (define_insn "fix_truncsfsi2" + [(set (match_operand:SI 0 "register_operand" "=d") + (fix:SI (match_operand:SF 1 "register_operand" "d")))] +-- +2.37.1 (Apple Git-137.1) + |