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author | Brad Bishop <bradleyb@fuzziesquirrel.com> | 2018-10-02 22:21:57 +0300 |
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committer | Brad Bishop <bradleyb@fuzziesquirrel.com> | 2018-10-02 22:25:59 +0300 |
commit | 286d45cc649a5b852a27b48e61b51bf75e9d1cee (patch) | |
tree | 90095cb0d2c571fd8de164caf2ca2f2e4d3f7247 /meta-xilinx/meta-xilinx-bsp/recipes-microblaze/gcc/gcc-7/0019-MicroBlaze-add-optimized-lshrsi3-When-barrel-shifter.patch | |
parent | d4b38429f6dec208547bf3d250a0c06f5d0fbcb2 (diff) | |
download | openbmc-286d45cc649a5b852a27b48e61b51bf75e9d1cee.tar.xz |
Add meta-xilinx subtree
Import git://git.yoctoproject.org/meta-xilinx from 5fccc46503 as
meta-xilinx subtree.
Change-Id: I3d59bcf3a57cee588aab7f5cdd0287af66450c8a
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
Diffstat (limited to 'meta-xilinx/meta-xilinx-bsp/recipes-microblaze/gcc/gcc-7/0019-MicroBlaze-add-optimized-lshrsi3-When-barrel-shifter.patch')
-rw-r--r-- | meta-xilinx/meta-xilinx-bsp/recipes-microblaze/gcc/gcc-7/0019-MicroBlaze-add-optimized-lshrsi3-When-barrel-shifter.patch | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/meta-xilinx/meta-xilinx-bsp/recipes-microblaze/gcc/gcc-7/0019-MicroBlaze-add-optimized-lshrsi3-When-barrel-shifter.patch b/meta-xilinx/meta-xilinx-bsp/recipes-microblaze/gcc/gcc-7/0019-MicroBlaze-add-optimized-lshrsi3-When-barrel-shifter.patch new file mode 100644 index 000000000..049ce3fe2 --- /dev/null +++ b/meta-xilinx/meta-xilinx-bsp/recipes-microblaze/gcc/gcc-7/0019-MicroBlaze-add-optimized-lshrsi3-When-barrel-shifter.patch @@ -0,0 +1,87 @@ +From 0b2061ac7706df97da3e8b3c01c6a5cfc504c16e Mon Sep 17 00:00:00 2001 +From: Mahesh Bodapati <mbodapat@xilinx.com> +Date: Sat, 26 Aug 2017 19:21:35 -0700 +Subject: [PATCH] MicroBlaze add optimized lshrsi3 When barrel shifter is not + present + +Add optimized lshrsi3 When barrel shifter is not present, the immediate +value is greater than #5 and optimization is -OS, the compiler will +generate shift operation using loop. + +Changelog + +2013-11-26 David Holsgrove <david.holsgrove@xilinx.com> + + * gcc/config/microblaze/microblaze.md: Add size optimized lshrsi3 insn + +ChangeLog/testsuite + +2014-02-12 David Holsgrove <david.holsgrove@xilinx.com> + + * gcc/testsuite/gcc.target/microblaze/others/lshrsi_Os_1.c: New test. + +Signed-off-by: Nagaraju Mekala <nagaraju.mekala@xilinx.com> +Signed-off-by: David Holsgrove <david.holsgrove@xilinx.com> +Signed-off-by: Mahesh Bodapati <mbodapat@xilinx.com> +Signed-off-by: Manjukumar Matha <manjukumar.harthikote-matha@xilinx.com> +Upstream-Status: Pending +--- + gcc/config/microblaze/microblaze.md | 21 +++++++++++++++++++++ + .../gcc.target/microblaze/others/lshrsi_Os_1.c | 13 +++++++++++++ + 2 files changed, 34 insertions(+) + create mode 100644 gcc/testsuite/gcc.target/microblaze/others/lshrsi_Os_1.c + +diff --git a/gcc/config/microblaze/microblaze.md b/gcc/config/microblaze/microblaze.md +index 8c0a97e032..abbe97c15f 100644 +--- a/gcc/config/microblaze/microblaze.md ++++ b/gcc/config/microblaze/microblaze.md +@@ -1615,6 +1615,27 @@ + (set_attr "length" "4,4")] + ) + ++(define_insn "*lshrsi3_with_size_opt" ++ [(set (match_operand:SI 0 "register_operand" "=&d") ++ (lshiftrt:SI (match_operand:SI 1 "register_operand" "d") ++ (match_operand:SI 2 "immediate_operand" "I")))] ++ "(INTVAL (operands[2]) > 5 && optimize_size)" ++ { ++ operands[3] = gen_rtx_REG (SImode, MB_ABI_ASM_TEMP_REGNUM); ++ ++ output_asm_insn ("ori\t%3,r0,%2", operands); ++ if (REGNO (operands[0]) != REGNO (operands[1])) ++ output_asm_insn ("addk\t%0,%1,r0", operands); ++ ++ output_asm_insn ("addik\t%3,%3,-1", operands); ++ output_asm_insn ("bneid\t%3,.-4", operands); ++ return "srl\t%0,%0"; ++ } ++ [(set_attr "type" "multi") ++ (set_attr "mode" "SI") ++ (set_attr "length" "20")] ++) ++ + (define_insn "*lshrsi_inline" + [(set (match_operand:SI 0 "register_operand" "=&d") + (lshiftrt:SI (match_operand:SI 1 "register_operand" "d") +diff --git a/gcc/testsuite/gcc.target/microblaze/others/lshrsi_Os_1.c b/gcc/testsuite/gcc.target/microblaze/others/lshrsi_Os_1.c +new file mode 100644 +index 0000000000..32a3be7c76 +--- /dev/null ++++ b/gcc/testsuite/gcc.target/microblaze/others/lshrsi_Os_1.c +@@ -0,0 +1,13 @@ ++/* { dg-options "-Os -mno-xl-barrel-shift" } */ ++ ++void testfunc(void) ++{ ++ unsigned volatile int z = 8192; ++ z >>= 8; ++} ++/* { dg-final { scan-assembler-not "\bsrli" } } */ ++/* { dg-final { scan-assembler "\ori\tr18,r0" } } */ ++/* { dg-final { scan-assembler "addk\tr(\[0-9]\|\[1-2]\[0-9]\|3\[0-1]),r(\[0-9]\|\[1-2]\[0-9]\|3\[0-1]),r0" } } */ ++/* { dg-final { scan-assembler "addik\tr18,r18,-1" } } */ ++/* { dg-final { scan-assembler "bneid\tr18,.-4" } } */ ++/* { dg-final { scan-assembler "\srl\tr(\[0-9]\|\[1-2]\[0-9]\|3\[0-1]),r(\[0-9]\|\[1-2]\[0-9]\|3\[0-1])" } } */ +-- +2.14.2 + |