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[arm] Use ISA feature sets for determining inlinability

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Now that we can construct the build target isa from the cl_target_options
data we can use this to determine inlinability.  This eliminates the
final remaining use of the FPU features field.

	* arm.c (arm_can_inline_p): Use ISA features for determining
	inlinability.

From-SVN: r243714
This commit is contained in:
Richard Earnshaw 2016-12-15 16:01:55 +00:00 committed by Richard Earnshaw
parent a53613c4ae
commit 56941f70ee
2 changed files with 24 additions and 8 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2016-12-15 Richard Earnshaw <rearnsha@arm.com>
* arm.c (arm_can_inline_p): Use ISA features for determining
inlinability.
2016-12-15 Richard Earnshaw <rearnsha@arm.com>
* arm-protos.h (arm_configure_build_target): Change second argument

27
gcc/config/arm/arm.c
View File

@ -30227,6 +30227,7 @@ arm_can_inline_p (tree caller, tree callee)
{
tree caller_tree = DECL_FUNCTION_SPECIFIC_TARGET (caller);
tree callee_tree = DECL_FUNCTION_SPECIFIC_TARGET (callee);
bool can_inline = true;
struct cl_target_option *caller_opts
= TREE_TARGET_OPTION (caller_tree ? caller_tree
@ -30236,19 +30237,29 @@ arm_can_inline_p (tree caller, tree callee)
= TREE_TARGET_OPTION (callee_tree ? callee_tree
: target_option_default_node);
const struct arm_fpu_desc *caller_fpu
= &all_fpus[caller_opts->x_arm_fpu_index];
const struct arm_fpu_desc *callee_fpu
= &all_fpus[callee_opts->x_arm_fpu_index];
if (callee_opts == caller_opts)
return true;
/* Callee's fpu features should be a subset of the caller's. */
if ((caller_fpu->features & callee_fpu->features) != callee_fpu->features)
return false;
/* Callee's ISA features should be a subset of the caller's. */
struct arm_build_target caller_target;
struct arm_build_target callee_target;
caller_target.isa = sbitmap_alloc (isa_num_bits);
callee_target.isa = sbitmap_alloc (isa_num_bits);
arm_configure_build_target (&caller_target, caller_opts, &global_options_set,
false);
arm_configure_build_target (&callee_target, callee_opts, &global_options_set,
false);
if (!bitmap_subset_p (callee_target.isa, caller_target.isa))
can_inline = false;
sbitmap_free (caller_target.isa);
sbitmap_free (callee_target.isa);
/* OK to inline between different modes.
Function with mode specific instructions, e.g using asm,
must be explicitly protected with noinline. */
return true;
return can_inline;
}
/* Hook to fix function's alignment affected by target attribute. */