From 9eabdc5e16a1fe10028244f779cde7b01bca7629 Mon Sep 17 00:00:00 2001 From: Tamar Christina Date: Thu, 5 Oct 2017 11:38:06 +0000 Subject: [PATCH] arm.c (arm_test_fpu_data): New. 2017-10-05 Tamar Christina * config/arm/arm.c (arm_test_fpu_data): New. (arm_run_selftests): Call arm_test_fpu_data. From-SVN: r253443 --- gcc/ChangeLog | 5 +++++ gcc/config/arm/arm.c | 33 +++++++++++++++++++++++++++++++++ 2 files changed, 38 insertions(+) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index b936292d7af..27d17820575 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2017-10-05 Tamar Christina + + * config/arm/arm.c (arm_test_fpu_data): New. + (arm_run_selftests): Call arm_test_fpu_data. + 2017-10-04 Nathan Sidwell * toplev.c (toplev::main): Remove excess parens on pretty_printer diff --git a/gcc/config/arm/arm.c b/gcc/config/arm/arm.c index 4cddf3b02e5..bece1f76011 100644 --- a/gcc/config/arm/arm.c +++ b/gcc/config/arm/arm.c @@ -31393,10 +31393,43 @@ arm_test_cpu_arch_data (void) } } +/* Scan the static data tables generated by parsecpu.awk looking for + potential issues with the data. Here we check for consistency between the + fpu bits, in particular we check that ISA_ALL_FPU_INTERNAL does not contain + a feature bit that is not defined by any FPU flag. */ +static void +arm_test_fpu_data (void) +{ + auto_sbitmap isa_all_fpubits (isa_num_bits); + auto_sbitmap fpubits (isa_num_bits); + auto_sbitmap tmpset (isa_num_bits); + + static const enum isa_feature fpu_bitlist[] + = { ISA_ALL_FPU_INTERNAL, isa_nobit }; + arm_initialize_isa (isa_all_fpubits, fpu_bitlist); + + for (unsigned int i = 0; i < TARGET_FPU_auto; i++) + { + arm_initialize_isa (fpubits, all_fpus[i].isa_bits); + bitmap_and_compl (tmpset, isa_all_fpubits, fpubits); + bitmap_clear (isa_all_fpubits); + bitmap_copy (isa_all_fpubits, tmpset); + } + + if (!bitmap_empty_p (isa_all_fpubits)) + { + fprintf (stderr, "Error: found feature bits in the ALL_FPU_INTERAL" + " group that are not defined by any FPU.\n" + " Check your arm-cpus.in.\n"); + ASSERT_TRUE (bitmap_empty_p (isa_all_fpubits)); + } +} + static void arm_run_selftests (void) { arm_test_cpu_arch_data (); + arm_test_fpu_data (); } } /* Namespace selftest. */ -- 2.30.2