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Add macros and inline functions to mips math_private.h file.
This is a patch to the MIPS math_private.h file to define HAVE_RM_CTX and implement the ctx macros. I also defined a few other macros and inline functions that I skipped the first time.
This commit is contained in:
Steve Ellcey
parent
f067bf1f33
commit
5b456e9d61
41
ChangeLog
41
ChangeLog
@ -1,3 +1,44 @@
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2014-02-26 Steve Ellcey <sellcey@mips.com>
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* sysdeps/mips/math_private.h (_FPU_MASK_ALL) New.
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(libc_feholdexcept_mips): Use _FPU_MASK_ALL.
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(libc_feholdexcept_setround_mips): Ditto.
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(libc_feholdsetround): New.
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(libc_feholdsetroundf): New.
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(libc_feholdsetroundl): New.
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(libc_feupdateenv_test_mips): New.
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(libc_feupdateenv_test): New.
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(libc_feupdateenv_testf): New.
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(libc_feupdateenv_testl): New.
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(libc_feresetround): New.
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(libc_feresetroundf): New.
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(libc_feresetroundl): New.
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(libc_fetestexcept_mips): New.
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(libc_fetestexcept): New.
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(libc_fetestexceptf): New.
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(libc_fetestexceptl): New.
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(HAVE_RM_CTX): New.
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(libc_feholdexcept_setround_mips_ctx): New.
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(libc_feholdexcept_setround_ctx): New.
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(libc_feholdexcept_setroundf_ctx): New.
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(libc_feholdexcept_setroundl_ctx): New.
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(libc_fesetenv_mips_ctx): New.
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(libc_fesetenv_ctx): New.
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(libc_fesetenv_ctxf): New.
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(libc_fesetenv_ctxl): New.
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(libc_feupdateenv_mips_ctx): New.
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(libc_feupdateenv_ctx): New.
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(libc_feupdateenvf_ctx): New.
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(libc_feupdateenvl_ctx): New.
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(libc_feholdsetround_mips_ctx): New.
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(libc_feholdsetround_ctx): New.
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(libc_feholdsetroundf_ctx): New.
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(libc_feholdsetroundl_ctx): New.
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(libc_feresetround_mips_ctx): New.
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(libc_feresetround_ctx): New.
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(libc_feresetroundf_ctx): New.
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(libc_feresetroundl_ctx): New.
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2014-02-26 Carlos O'Donell <carlos@redhat.com>
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* manual/ipc.texi (Semaphores): Use @Theglibc{}.
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@ -37,6 +37,9 @@
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# include <fenv_libc.h>
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# include <fpu_control.h>
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# define _FPU_MASK_ALL (_FPU_MASK_V | _FPU_MASK_Z | _FPU_MASK_O \
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|_FPU_MASK_U | _FPU_MASK_I | FE_ALL_EXCEPT)
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static __always_inline void
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libc_feholdexcept_mips (fenv_t *envp)
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{
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@ -47,7 +50,7 @@ libc_feholdexcept_mips (fenv_t *envp)
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envp->__fp_control_register = cw;
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/* Clear all exception enable bits and flags. */
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cw &= ~(_FPU_MASK_V|_FPU_MASK_Z|_FPU_MASK_O|_FPU_MASK_U|_FPU_MASK_I|FE_ALL_EXCEPT);
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cw &= ~(_FPU_MASK_ALL);
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_FPU_SETCW (cw);
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}
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# define libc_feholdexcept libc_feholdexcept_mips
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@ -83,7 +86,7 @@ libc_feholdexcept_setround_mips (fenv_t *envp, int round)
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envp->__fp_control_register = cw;
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/* Clear all exception enable bits and flags. */
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cw &= ~(_FPU_MASK_V|_FPU_MASK_Z|_FPU_MASK_O|_FPU_MASK_U|_FPU_MASK_I|FE_ALL_EXCEPT);
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cw &= ~(_FPU_MASK_ALL);
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/* Set rounding bits. */
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cw &= ~_FPU_RC_MASK;
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@ -96,6 +99,10 @@ libc_feholdexcept_setround_mips (fenv_t *envp, int round)
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# define libc_feholdexcept_setroundf libc_feholdexcept_setround_mips
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# define libc_feholdexcept_setroundl libc_feholdexcept_setround_mips
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# define libc_feholdsetround libc_feholdexcept_setround_mips
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# define libc_feholdsetroundf libc_feholdexcept_setround_mips
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# define libc_feholdsetroundl libc_feholdexcept_setround_mips
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static __always_inline void
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libc_fesetenv_mips (fenv_t *envp)
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{
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@ -110,28 +117,141 @@ libc_fesetenv_mips (fenv_t *envp)
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# define libc_fesetenvf libc_fesetenv_mips
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# define libc_fesetenvl libc_fesetenv_mips
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static __always_inline void
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libc_feupdateenv_mips (fenv_t *envp)
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static __always_inline int
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libc_feupdateenv_test_mips (fenv_t *envp, int excepts)
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{
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int temp;
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/* int ret = fetestexcept (excepts); feupdateenv (envp); return ret; */
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int cw, temp;
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/* Save current exceptions. */
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_FPU_GETCW (temp);
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/* Get current control word. */
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_FPU_GETCW (cw);
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/* Set flag bits (which are accumulative), and *also* set the
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cause bits. The setting of the cause bits is what actually causes
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the hardware to generate the exception, if the corresponding enable
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bit is set as well. */
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temp &= FE_ALL_EXCEPT;
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temp = cw & FE_ALL_EXCEPT;
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temp |= envp->__fp_control_register | (temp << CAUSE_SHIFT);
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/* Set new state. */
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_FPU_SETCW (temp);
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return cw & excepts & FE_ALL_EXCEPT;
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}
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# define libc_feupdateenv_test libc_feupdateenv_test_mips
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# define libc_feupdateenv_testf libc_feupdateenv_test_mips
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# define libc_feupdateenv_testl libc_feupdateenv_test_mips
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static __always_inline void
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libc_feupdateenv_mips (fenv_t *envp)
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{
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libc_feupdateenv_test_mips (envp, 0);
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}
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# define libc_feupdateenv libc_feupdateenv_mips
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# define libc_feupdateenvf libc_feupdateenv_mips
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# define libc_feupdateenvl libc_feupdateenv_mips
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# define libc_feresetround libc_feupdateenv_mips
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# define libc_feresetroundf libc_feupdateenv_mips
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# define libc_feresetroundl libc_feupdateenv_mips
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static __always_inline int
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libc_fetestexcept_mips (int excepts)
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{
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int cw;
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/* Get current control word. */
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_FPU_GETCW (cw);
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return cw & excepts & FE_ALL_EXCEPT;
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}
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# define libc_fetestexcept libc_fetestexcept_mips
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# define libc_fetestexceptf libc_fetestexcept_mips
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# define libc_fetestexceptl libc_fetestexcept_mips
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/* Enable support for rounding mode context. */
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# define HAVE_RM_CTX 1
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static __always_inline void
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libc_feholdexcept_setround_mips_ctx (struct rm_ctx *ctx, int round)
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{
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fpu_control_t old, new;
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/* Save the current state. */
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_FPU_GETCW (old);
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ctx->env.__fp_control_register = old;
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/* Clear all exception enable bits and flags. */
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new = old & ~(_FPU_MASK_ALL);
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/* Set rounding bits. */
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new = (new & ~_FPU_RC_MASK) | round;
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if (__glibc_unlikely (new != old))
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{
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_FPU_SETCW (new);
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ctx->updated_status = true;
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}
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else
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ctx->updated_status = false;
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}
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# define libc_feholdexcept_setround_ctx libc_feholdexcept_setround_mips_ctx
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# define libc_feholdexcept_setroundf_ctx libc_feholdexcept_setround_mips_ctx
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# define libc_feholdexcept_setroundl_ctx libc_feholdexcept_setround_mips_ctx
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static __always_inline void
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libc_fesetenv_mips_ctx (struct rm_ctx *ctx)
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{
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libc_fesetenv_mips (&ctx->env);
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}
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# define libc_fesetenv_ctx libc_fesetenv_mips_ctx
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# define libc_fesetenvf_ctx libc_fesetenv_mips_ctx
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# define libc_fesetenvl_ctx libc_fesetenv_mips_ctx
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static __always_inline void
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libc_feupdateenv_mips_ctx (struct rm_ctx *ctx)
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{
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if (__glibc_unlikely (ctx->updated_status))
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libc_feupdateenv_test_mips (&ctx->env, 0);
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}
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# define libc_feupdateenv_ctx libc_feupdateenv_mips_ctx
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# define libc_feupdateenvf_ctx libc_feupdateenv_mips_ctx
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# define libc_feupdateenvl_ctx libc_feupdateenv_mips_ctx
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static __always_inline void
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libc_feholdsetround_mips_ctx (struct rm_ctx *ctx, int round)
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{
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fpu_control_t old, new;
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/* Save the current state. */
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_FPU_GETCW (old);
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ctx->env.__fp_control_register = old;
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/* Set rounding bits. */
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new = (old & ~_FPU_RC_MASK) | round;
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if (__glibc_unlikely (new != old))
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{
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_FPU_SETCW (new);
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ctx->updated_status = true;
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}
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else
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ctx->updated_status = false;
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}
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# define libc_feholdsetround_ctx libc_feholdsetround_mips_ctx
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# define libc_feholdsetroundf_ctx libc_feholdsetround_mips_ctx
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# define libc_feholdsetroundl_ctx libc_feholdsetround_mips_ctx
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static __always_inline void
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libc_feresetround_mips_ctx (struct rm_ctx *ctx)
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{
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if (__glibc_unlikely (ctx->updated_status))
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_FPU_SETCW (ctx->env);
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}
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# define libc_feresetround_ctx libc_feresetround_mips_ctx
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# define libc_feresetroundf_ctx libc_feresetround_mips_ctx
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# define libc_feresetroundl_ctx libc_feresetround_mips_ctx
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#endif
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#include_next <math_private.h>
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