From cf9bdae906f897ae13563c03c65f325cad05bf1c Mon Sep 17 00:00:00 2001 From: claziss Date: Wed, 7 Jun 2017 15:57:56 +0200 Subject: [PATCH] Update check conditions for illegal placed instructions. ARC cpus do not accept any jump or instructions with long immediate into the delay slots. gas/ 2017-06-07 Claudiu Zissulescu * /config/tc-arc.c (is_br_jmp_insn_p): Update macro with known instructions to be accounted as jumps. (assemble_insn): Check for limms into the delay slots. Emit an error if so. * testsuite/gas/arc/asm-errors-3.d: New file. * testsuite/gas/arc/asm-errors-3.err: Likewise. * testsuite/gas/arc/asm-errors-3.s: Likewise. --- gas/ChangeLog | 10 ++++++++++ gas/config/tc-arc.c | 19 +++++++++++++++++-- gas/testsuite/gas/arc/asm-errors-3.d | 2 ++ gas/testsuite/gas/arc/asm-errors-3.err | 7 +++++++ gas/testsuite/gas/arc/asm-errors-3.s | 14 ++++++++++++++ 5 files changed, 50 insertions(+), 2 deletions(-) create mode 100644 gas/testsuite/gas/arc/asm-errors-3.d create mode 100644 gas/testsuite/gas/arc/asm-errors-3.err create mode 100644 gas/testsuite/gas/arc/asm-errors-3.s diff --git a/gas/ChangeLog b/gas/ChangeLog index 1c946d2..d91de47 100644 --- a/gas/ChangeLog +++ b/gas/ChangeLog @@ -1,3 +1,13 @@ +2017-06-26 Claudiu Zissulescu + + * /config/tc-arc.c (is_br_jmp_insn_p): Update macro with known + instructions to be accounted as jumps. + (assemble_insn): Check for limms into the delay slots. Emit an + error if so. + * testsuite/gas/arc/asm-errors-3.d: New file. + * testsuite/gas/arc/asm-errors-3.err: Likewise. + * testsuite/gas/arc/asm-errors-3.s: Likewise. + 2017-06-26 Thomas Preud'homme * NEWS: Mention support of ARM Cortex-R52 processor. diff --git a/gas/config/tc-arc.c b/gas/config/tc-arc.c index a56b2a5..dd67d77 100644 --- a/gas/config/tc-arc.c +++ b/gas/config/tc-arc.c @@ -107,8 +107,18 @@ enum arc_rlx_types #define is_spfp_p(op) (((sc) == SPX)) #define is_dpfp_p(op) (((sc) == DPX)) #define is_fpuda_p(op) (((sc) == DPA)) -#define is_br_jmp_insn_p(op) (((op)->insn_class == BRANCH \ - || (op)->insn_class == JUMP)) +#define is_br_jmp_insn_p(op) (((op)->insn_class == BRANCH \ + || (op)->insn_class == JUMP \ + || (op)->insn_class == BRCC \ + || (op)->insn_class == BBIT0 \ + || (op)->insn_class == BBIT1 \ + || (op)->insn_class == BI \ + || (op)->insn_class == EI \ + || (op)->insn_class == ENTER \ + || (op)->insn_class == JLI \ + || (op)->insn_class == LOOP \ + || (op)->insn_class == LEAVE \ + )) #define is_kernel_insn_p(op) (((op)->insn_class == KERNEL)) #define is_nps400_p(op) (((sc) == NPS400)) @@ -4107,6 +4117,11 @@ assemble_insn (const struct arc_opcode *opcode, as_bad (_("Insn %s has a jump/branch instruction %s in its delay slot."), arc_last_insns[1].opcode->name, arc_last_insns[0].opcode->name); + if (arc_last_insns[1].has_delay_slot + && arc_last_insns[0].has_limm) + as_bad (_("Insn %s has an instruction %s with limm in its delay slot."), + arc_last_insns[1].opcode->name, + arc_last_insns[0].opcode->name); } void diff --git a/gas/testsuite/gas/arc/asm-errors-3.d b/gas/testsuite/gas/arc/asm-errors-3.d new file mode 100644 index 0000000..aa34c86 --- /dev/null +++ b/gas/testsuite/gas/arc/asm-errors-3.d @@ -0,0 +1,2 @@ +#as: +#error-output: asm-errors-3.err diff --git a/gas/testsuite/gas/arc/asm-errors-3.err b/gas/testsuite/gas/arc/asm-errors-3.err new file mode 100644 index 0000000..735508e --- /dev/null +++ b/gas/testsuite/gas/arc/asm-errors-3.err @@ -0,0 +1,7 @@ +[^:]*: Assembler messages: +[^:]*:4: Error: Insn bl has an instruction st with limm in its delay slot. +[^:]*:6: Error: Insn bl has an instruction st with limm in its delay slot. +[^:]*:8: Error: Insn bl has a jump/branch instruction breq in its delay slot. +[^:]*:10: Error: Insn bl has a jump/branch instruction bl in its delay slot. +[^:]*:12: Error: Insn bl has a jump/branch instruction bbit0 in its delay slot. +[^:]*:14: Error: Insn bl has a jump/branch instruction ei_s in its delay slot. diff --git a/gas/testsuite/gas/arc/asm-errors-3.s b/gas/testsuite/gas/arc/asm-errors-3.s new file mode 100644 index 0000000..e198a2e --- /dev/null +++ b/gas/testsuite/gas/arc/asm-errors-3.s @@ -0,0 +1,14 @@ + .cpu ARCHS +.L1: + bl.d @foo + st 1,[@a] + bl.d @foo + st @a,[r1] + bl.d @foo + breq r0,r1,@.L1 + bl.d @foo + bl @foo + bl.d @foo + bbit0 r0,r1,@.L1 + bl.d @foo + ei_s 1 -- 2.7.4