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[amdgcn] Silence warnings + add gcc_unreachable()

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* config/gcn/gcn.c (gcn_expand_scalar_to_vector_address,
        gcn_md_reorg): Remove unused variables.
        (gcn_emutls_var_init): Add missing (but unreachable) return
        to silence warning.
        (gcn_hsa_declare_function_name): Add gcc_unreachable to ensure
        target != TARGET_GCN3 or TARGET_GCN3 will fail instead of use
        an uninitialized variable.

From-SVN: r278678
This commit is contained in:
Tobias Burnus 2019-11-25 11:34:53 +00:00 committed by Tobias Burnus
parent d587d1e4aa
commit 6349e4f04c
2 changed files with 13 additions and 3 deletions
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10
gcc/ChangeLog
View File

@ -1,3 +1,13 @@
2019-11-25 Tobias Burnus <tobias@codesourcery.com>
* config/gcn/gcn.c (gcn_expand_scalar_to_vector_address,
gcn_md_reorg): Remove unused variables.
(gcn_emutls_var_init): Add missing (but unreachable) return
to silence warning.
(gcn_hsa_declare_function_name): Add gcc_unreachable to ensure
target != TARGET_GCN3 or TARGET_GCN3 will fail instead of use
an uninitialized variable.
2019-11-25 Martin Jambor <mjambor@suse.cz>
PR ipa/92109

6
gcc/config/gcn/gcn.c
View File

@ -1783,7 +1783,6 @@ gcn_expand_scalar_to_vector_address (machine_mode mode, rtx exec, rtx mem,
/* tmp[:] += zext (mem_base) */
if (exec)
{
rtx undef_di = gcn_gen_undef (DImode);
emit_insn (gen_addv64si3_vcc_dup_exec (tmplo, mem_base_lo, tmplo,
vcc, undef_v64si, exec));
emit_insn (gen_addcv64si3_exec (tmphi, tmphi, const0_rtx,
@ -3213,6 +3212,7 @@ tree
gcn_emutls_var_init (tree, tree decl, tree)
{
sorry_at (DECL_SOURCE_LOCATION (decl), "TLS is not implemented for GCN.");
return NULL_TREE;
}
/* }}} */
@ -4340,8 +4340,6 @@ gcn_md_reorg (void)
{
basic_block bb;
rtx exec_reg = gen_rtx_REG (DImode, EXEC_REG);
rtx exec_lo_reg = gen_rtx_REG (SImode, EXEC_LO_REG);
rtx exec_hi_reg = gen_rtx_REG (SImode, EXEC_HI_REG);
regset_head live;
INIT_REG_SET (&live);
@ -4937,6 +4935,8 @@ gcn_hsa_declare_function_name (FILE *file, const char *name, tree)
granulated_sgprs = (sgpr + extra_regs + 7) / 8 - 1;
else if (TARGET_GCN5)
granulated_sgprs = 2 * ((sgpr + extra_regs + 15) / 16 - 1);
else
gcc_unreachable ();
fputs ("\t.align\t256\n", file);
fputs ("\t.type\t", file);