From 5f54efe1e7d9604b45ddddd510ce439477d0e94f Mon Sep 17 00:00:00 2001 From: Nagaraju Date: Thu, 9 Jan 2020 12:30:41 +0530 Subject: [PATCH] [Patch, microblaze]: Fix Compiler crash with -freg-struct-return This patch fixes a bug in MB GCC regarding the passing struct values in registers. Currently we are only handling SImode With this patch all other modes are handled properly Signed-off-by :Nagaraju Mekala --- gcc/config/microblaze/microblaze.c | 11 ++++++++++- gcc/config/microblaze/microblaze.h | 19 ------------------- 2 files changed, 10 insertions(+), 20 deletions(-) diff --git a/gcc/config/microblaze/microblaze.c b/gcc/config/microblaze/microblaze.c index 5c09452..beccd12 100644 --- a/gcc/config/microblaze/microblaze.c +++ b/gcc/config/microblaze/microblaze.c @@ -4046,7 +4046,16 @@ microblaze_function_value (const_tree valtype, const_tree func ATTRIBUTE_UNUSED, bool outgoing ATTRIBUTE_UNUSED) { - return LIBCALL_VALUE (TYPE_MODE (valtype)); + return gen_rtx_REG (TYPE_MODE (valtype), GP_RETURN); +} + +#undef TARGET_LIBCALL_VALUE +#define TARGET_LIBCALL_VALUE microblaze_libcall_value + +rtx +microblaze_libcall_value (machine_mode mode, const_rtx fun ATTRIBUTE_UNUSED) +{ + return gen_rtx_REG (mode, GP_RETURN); } /* Implement TARGET_SCHED_ADJUST_COST. */ diff --git a/gcc/config/microblaze/microblaze.h b/gcc/config/microblaze/microblaze.h index ab541f7..100e7b2 100644 --- a/gcc/config/microblaze/microblaze.h +++ b/gcc/config/microblaze/microblaze.h @@ -266,13 +266,6 @@ extern enum pipeline_type microblaze_pipe; #define LOAD_EXTEND_OP(MODE) ZERO_EXTEND -#ifndef __arch64__ -#define PROMOTE_MODE(MODE, UNSIGNEDP, TYPE) \ - if (GET_MODE_CLASS (MODE) == MODE_INT \ - && GET_MODE_SIZE (MODE) < 4) \ - (MODE) = SImode; -#endif - /* Standard register usage. */ /* On the MicroBlaze, we have 32 integer registers */ @@ -471,18 +464,6 @@ extern struct microblaze_frame_info current_frame_info; #define MAX_ARGS_IN_REGISTERS MB_ABI_MAX_ARG_REGS -#ifdef __aarch64__ -#define LIBCALL_VALUE(MODE) \ - gen_rtx_REG (MODE,GP_RETURN) -#else -#define LIBCALL_VALUE(MODE) \ - gen_rtx_REG ( \ - ((GET_MODE_CLASS (MODE) != MODE_INT \ - || GET_MODE_SIZE (MODE) >= 4) \ - ? (MODE) \ - : SImode), GP_RETURN) -#endif - /* 1 if N is a possible register number for a function value. On the MicroBlaze, R2 R3 are the only register thus used. Currently, R2 are only implemented here (C has no complex type) */ -- 1.8.3.1