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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-10/0017-Patch-microblaze-Add-optimized-lshrsi3.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-10/0017-Patch-microblaze-Add-optimized-lshrsi3.patch')
-rw-r--r-- | meta-xilinx/meta-microblaze/recipes-devtools/gcc/gcc-10/0017-Patch-microblaze-Add-optimized-lshrsi3.patch | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/meta-xilinx/meta-microblaze/recipes-devtools/gcc/gcc-10/0017-Patch-microblaze-Add-optimized-lshrsi3.patch b/meta-xilinx/meta-microblaze/recipes-devtools/gcc/gcc-10/0017-Patch-microblaze-Add-optimized-lshrsi3.patch new file mode 100644 index 000000000..cfc06f747 --- /dev/null +++ b/meta-xilinx/meta-microblaze/recipes-devtools/gcc/gcc-10/0017-Patch-microblaze-Add-optimized-lshrsi3.patch @@ -0,0 +1,83 @@ +From 27c27a8876152bac78059a1b2d5a6f0ac9b8cee2 Mon Sep 17 00:00:00 2001 +From: Mahesh Bodapati <mbodapat@xilinx.com> +Date: Tue, 17 Jan 2017 15:23:57 +0530 +Subject: [PATCH 17/58] [Patch, microblaze]: 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 <nmekala@xilix.com> +Signed-off-by: David Holsgrove <david.holsgrove@xilinx.com> +--- + gcc/config/microblaze/microblaze.md | 21 +++++++++++++++++++ + .../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 187ad522dcc..8f9baec826b 100644 +--- a/gcc/config/microblaze/microblaze.md ++++ b/gcc/config/microblaze/microblaze.md +@@ -1618,6 +1618,27 @@ + (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 00000000000..32a3be7c76a +--- /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])" } } */ +-- +2.17.1 + |