https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67723
Bug ID: 67723
Summary: [SH] fsrra/fsca not working with #pragma GCC optimize
("fast-math")
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: olegendo at gcc dot gnu.org
Target Milestone: ---
Target: sh*-*-*
When the following code is compiled with "-m4-single -ml -O2 -mfsrra"
#pragma GCC push_options
#pragma GCC optimize("fast-math")
extern "C" float sqrtf (float);
float __attribute__((noinline)) test_00 (float x)
{
return 1.0f / sqrtf (x);
}
#pragma GCC pop_options
// #pragma GCC reset_options
float __attribute__((noinline)) test_01 (float x)
{
return 1.0f / sqrtf (x);
}
..the expected outcome is test_00 emitting an fsrra insn and test_01 not.
However, this is not the case. This is because fsrra (and fsca) are enabled in
sh_option_override. Instead they should be enabled in
TARGET_OVERRIDE_OPTIONS_AFTER_CHANGE
Other SH specific options should be checked for this, too.
