From 5e81df88cae713bf867c6260df79994d59cac5e5 Mon Sep 17 00:00:00 2001 From: Claudiu Zissulescu Date: Mon, 10 Oct 2022 10:27:12 +0300 Subject: [PATCH] arc: Use negative enter pattern instruction's offsets The enter pattern instruction contains the necessary information for the dwarf machinery to generate the appropriate dwarf code. This patch is fixing the register offsets related to CFA, and adds a test. gcc/ * config/arc/arc.cc (arc_save_callee_enter): Use negative offsets. gcc/testsuite * gcc.target/arc/enter-dw2-1.c: New file. Signed-off-by: Claudiu Zissulescu --- gcc/config/arc/arc.cc | 6 ++--- gcc/testsuite/gcc.target/arc/enter-dw2-1.c | 28 ++++++++++++++++++++++ 2 files changed, 31 insertions(+), 3 deletions(-) create mode 100644 gcc/testsuite/gcc.target/arc/enter-dw2-1.c diff --git a/gcc/config/arc/arc.cc b/gcc/config/arc/arc.cc index db4b56b23ff9..7be27e010353 100644 --- a/gcc/config/arc/arc.cc +++ b/gcc/config/arc/arc.cc @@ -3356,7 +3356,7 @@ arc_save_callee_enter (uint64_t gmask, reg = gen_rtx_REG (Pmode, RETURN_ADDR_REGNUM); mem = gen_frame_mem (Pmode, plus_constant (Pmode, stack_pointer_rtx, - off)); + -off)); XVECEXP (insn, 0, indx) = gen_rtx_SET (mem, reg); RTX_FRAME_RELATED_P (XVECEXP (insn, 0, indx++)) = 1; off -= UNITS_PER_WORD; @@ -3370,7 +3370,7 @@ arc_save_callee_enter (uint64_t gmask, reg = gen_rtx_REG (SImode, regno); mem = gen_frame_mem (SImode, plus_constant (Pmode, stack_pointer_rtx, - off)); + -off)); XVECEXP (insn, 0, indx) = gen_rtx_SET (mem, reg); RTX_FRAME_RELATED_P (XVECEXP (insn, 0, indx)) = 1; gmask = gmask & ~(1ULL << regno); @@ -3380,7 +3380,7 @@ arc_save_callee_enter (uint64_t gmask, { mem = gen_frame_mem (Pmode, plus_constant (Pmode, stack_pointer_rtx, - off)); + -off)); XVECEXP (insn, 0, indx) = gen_rtx_SET (mem, hard_frame_pointer_rtx); RTX_FRAME_RELATED_P (XVECEXP (insn, 0, indx++)) = 1; off -= UNITS_PER_WORD; diff --git a/gcc/testsuite/gcc.target/arc/enter-dw2-1.c b/gcc/testsuite/gcc.target/arc/enter-dw2-1.c new file mode 100644 index 000000000000..25d035621984 --- /dev/null +++ b/gcc/testsuite/gcc.target/arc/enter-dw2-1.c @@ -0,0 +1,28 @@ +/* Verify that we generate appropriate CFI offsets in the case of enter + instruction. */ +/* { dg-skip-if "Not having enter_s insn." { arc700 || arc6xx } } */ +/* { dg-do compile } */ +/* { dg-options "-g -Os" } */ + +extern void bar (void); + +void foo (void) +{ + asm volatile (";my clobber list" + : : : "r13", "r14", "r15", "r16", "r17", "r18", "r19"); + bar (); + asm volatile (";my clobber list" + : : : "r13", "r14", "r15", "r16", "r17", "r18", "r19"); +} + + +/* { dg-final { scan-assembler-times "enter_s" 1 } } */ +/* { dg-final { scan-assembler-times "\.cfi_def_cfa_offset 32" 1 } } */ +/* { dg-final { scan-assembler-times "\.cfi_offset 31, -32" 1 } } */ +/* { dg-final { scan-assembler-times "\.cfi_offset 13, -28" 1 } } */ +/* { dg-final { scan-assembler-times "\.cfi_offset 14, -24" 1 } } */ +/* { dg-final { scan-assembler-times "\.cfi_offset 15, -20" 1 } } */ +/* { dg-final { scan-assembler-times "\.cfi_offset 16, -16" 1 } } */ +/* { dg-final { scan-assembler-times "\.cfi_offset 17, -12" 1 } } */ +/* { dg-final { scan-assembler-times "\.cfi_offset 18, -8" 1 } } */ +/* { dg-final { scan-assembler-times "\.cfi_offset 19, -4" 1 } } */ -- 2.47.2