* result = s - h * d
*
* EP version of the function can be implemented as y[i]=sqrt(a[i]^2+b[i]^2)
- * with all intermediate operations done in target precision for i=1,..,n.
+ * with all intermediate operations done in target precision for i=1, .., n.
* It can return result y[i]=0 in case a[i]^2 and b[i]^2 underflow in target
* precision (for some i). It can return result y[i]=NAN in case
* a[i]^2+b[i]^2 overflow in target precision, for some i. It can return
/* Offsets for data table __svml_shypot_data_internal
*/
-#define _sHiLoMask 0
-#define _sAbsMask 16
-#define _sHalf 32
-#define _LowBoundary 48
-#define _HighBoundary 64
+#define _sHiLoMask 0
+#define _sAbsMask 16
+#define _sHalf 32
+#define _LowBoundary 48
+#define _HighBoundary 64
#include <sysdep.h>
- .text
- .section .text.sse4,"ax",@progbits
+ .section .text.sse4, "ax", @progbits
ENTRY(_ZGVbN4vv_hypotf_sse4)
- subq $88, %rsp
- cfi_def_cfa_offset(96)
-
-/*
- * Implementation
- * Multiprecision branch for _HA_ only
- * No multiprecision branch for _LA_
- * _z = _VARG1 * _VARG1 + _VARG2 * _VARG2
- */
- movaps %xmm0, %xmm8
- movaps %xmm1, %xmm2
- mulps %xmm0, %xmm8
- mulps %xmm1, %xmm2
-
-/*
- * Variables
- * Defines
- * Constants loading
- */
- movups _sHalf+__svml_shypot_data_internal(%rip), %xmm5
- addps %xmm2, %xmm8
-
-/* _s0 ~ 1.0/sqrt(_z) */
- rsqrtps %xmm8, %xmm10
-
-/* First iteration */
- movaps %xmm10, %xmm2
- movaps %xmm8, %xmm3
- mulps %xmm8, %xmm2
- mulps %xmm5, %xmm10
- movaps %xmm2, %xmm6
- mulps %xmm10, %xmm6
-
-/* Check _z exponent to be withing borders [1E3 ; 60A] else goto Callout */
- movdqu _LowBoundary+__svml_shypot_data_internal(%rip), %xmm4
- subps %xmm6, %xmm5
-
-/* Second iteration */
- movaps %xmm5, %xmm7
- pcmpgtd %xmm8, %xmm4
- mulps %xmm2, %xmm5
- mulps %xmm10, %xmm7
- addps %xmm5, %xmm2
- addps %xmm7, %xmm10
-
-/* Finish second iteration in native precision for _LA_ */
- movaps %xmm2, %xmm9
- mulps %xmm2, %xmm9
- pcmpgtd _HighBoundary+__svml_shypot_data_internal(%rip), %xmm3
- subps %xmm8, %xmm9
- mulps %xmm9, %xmm10
- por %xmm3, %xmm4
- movmskps %xmm4, %edx
- subps %xmm10, %xmm2
-
-/* The end of implementation */
- testl %edx, %edx
-
-/* Go to special inputs processing branch */
- jne L(SPECIAL_VALUES_BRANCH)
- # LOE rbx rbp r12 r13 r14 r15 edx xmm0 xmm1 xmm2
-
-/* Restore registers
- * and exit the function
- */
+ subq $88, %rsp
+ cfi_def_cfa_offset(96)
+
+ /*
+ * Implementation
+ * Multiprecision branch for _HA_ only
+ * No multiprecision branch for _LA_
+ * _z = _VARG1 * _VARG1 + _VARG2 * _VARG2
+ */
+ movaps %xmm0, %xmm8
+ movaps %xmm1, %xmm2
+ mulps %xmm0, %xmm8
+ mulps %xmm1, %xmm2
+
+ /*
+ * Variables
+ * Defines
+ * Constants loading
+ */
+ movups _sHalf+__svml_shypot_data_internal(%rip), %xmm5
+ addps %xmm2, %xmm8
+
+ /* _s0 ~ 1.0/sqrt(_z) */
+ rsqrtps %xmm8, %xmm10
+
+ /* First iteration */
+ movaps %xmm10, %xmm2
+ movaps %xmm8, %xmm3
+ mulps %xmm8, %xmm2
+ mulps %xmm5, %xmm10
+ movaps %xmm2, %xmm6
+ mulps %xmm10, %xmm6
+
+ /* Check _z exponent to be withing borders [1E3 ; 60A] else goto Callout */
+ movdqu _LowBoundary+__svml_shypot_data_internal(%rip), %xmm4
+ subps %xmm6, %xmm5
+
+ /* Second iteration */
+ movaps %xmm5, %xmm7
+ pcmpgtd %xmm8, %xmm4
+ mulps %xmm2, %xmm5
+ mulps %xmm10, %xmm7
+ addps %xmm5, %xmm2
+ addps %xmm7, %xmm10
+
+ /* Finish second iteration in native precision for _LA_ */
+ movaps %xmm2, %xmm9
+ mulps %xmm2, %xmm9
+ pcmpgtd _HighBoundary+__svml_shypot_data_internal(%rip), %xmm3
+ subps %xmm8, %xmm9
+ mulps %xmm9, %xmm10
+ por %xmm3, %xmm4
+ movmskps %xmm4, %edx
+ subps %xmm10, %xmm2
+
+ /* The end of implementation */
+ testl %edx, %edx
+
+ /* Go to special inputs processing branch */
+ jne L(SPECIAL_VALUES_BRANCH)
+ # LOE rbx rbp r12 r13 r14 r15 edx xmm0 xmm1 xmm2
+
+ /* Restore registers
+ * and exit the function
+ */
L(EXIT):
- movaps %xmm2, %xmm0
- addq $88, %rsp
- cfi_def_cfa_offset(8)
- ret
- cfi_def_cfa_offset(96)
-
-/* Branch to process
- * special inputs
- */
+ movaps %xmm2, %xmm0
+ addq $88, %rsp
+ cfi_def_cfa_offset(8)
+ ret
+ cfi_def_cfa_offset(96)
+
+ /* Branch to process
+ * special inputs
+ */
L(SPECIAL_VALUES_BRANCH):
- movups %xmm0, 32(%rsp)
- movups %xmm1, 48(%rsp)
- movups %xmm2, 64(%rsp)
- # LOE rbx rbp r12 r13 r14 r15 edx
-
- xorl %eax, %eax
- movq %r12, 16(%rsp)
- cfi_offset(12, -80)
- movl %eax, %r12d
- movq %r13, 8(%rsp)
- cfi_offset(13, -88)
- movl %edx, %r13d
- movq %r14, (%rsp)
- cfi_offset(14, -96)
- # LOE rbx rbp r15 r12d r13d
-
-/* Range mask
- * bits check
- */
+ movups %xmm0, 32(%rsp)
+ movups %xmm1, 48(%rsp)
+ movups %xmm2, 64(%rsp)
+ # LOE rbx rbp r12 r13 r14 r15 edx
+
+ xorl %eax, %eax
+ movq %r12, 16(%rsp)
+ cfi_offset(12, -80)
+ movl %eax, %r12d
+ movq %r13, 8(%rsp)
+ cfi_offset(13, -88)
+ movl %edx, %r13d
+ movq %r14, (%rsp)
+ cfi_offset(14, -96)
+ # LOE rbx rbp r15 r12d r13d
+
+ /* Range mask
+ * bits check
+ */
L(RANGEMASK_CHECK):
- btl %r12d, %r13d
+ btl %r12d, %r13d
-/* Call scalar math function */
- jc L(SCALAR_MATH_CALL)
- # LOE rbx rbp r15 r12d r13d
+ /* Call scalar math function */
+ jc L(SCALAR_MATH_CALL)
+ # LOE rbx rbp r15 r12d r13d
-/* Special inputs
- * processing loop
- */
+ /* Special inputs
+ * processing loop
+ */
L(SPECIAL_VALUES_LOOP):
- incl %r12d
- cmpl $4, %r12d
-
-/* Check bits in range mask */
- jl L(RANGEMASK_CHECK)
- # LOE rbx rbp r15 r12d r13d
-
- movq 16(%rsp), %r12
- cfi_restore(12)
- movq 8(%rsp), %r13
- cfi_restore(13)
- movq (%rsp), %r14
- cfi_restore(14)
- movups 64(%rsp), %xmm2
-
-/* Go to exit */
- jmp L(EXIT)
- cfi_offset(12, -80)
- cfi_offset(13, -88)
- cfi_offset(14, -96)
- # LOE rbx rbp r12 r13 r14 r15 xmm2
-
-/* Scalar math fucntion call
- * to process special input
- */
+ incl %r12d
+ cmpl $4, %r12d
+
+ /* Check bits in range mask */
+ jl L(RANGEMASK_CHECK)
+ # LOE rbx rbp r15 r12d r13d
+
+ movq 16(%rsp), %r12
+ cfi_restore(12)
+ movq 8(%rsp), %r13
+ cfi_restore(13)
+ movq (%rsp), %r14
+ cfi_restore(14)
+ movups 64(%rsp), %xmm2
+
+ /* Go to exit */
+ jmp L(EXIT)
+ cfi_offset(12, -80)
+ cfi_offset(13, -88)
+ cfi_offset(14, -96)
+ # LOE rbx rbp r12 r13 r14 r15 xmm2
+
+ /* Scalar math fucntion call
+ * to process special input
+ */
L(SCALAR_MATH_CALL):
- movl %r12d, %r14d
- movss 32(%rsp,%r14,4), %xmm0
- movss 48(%rsp,%r14,4), %xmm1
- call hypotf@PLT
- # LOE rbx rbp r14 r15 r12d r13d xmm0
+ movl %r12d, %r14d
+ movss 32(%rsp, %r14, 4), %xmm0
+ movss 48(%rsp, %r14, 4), %xmm1
+ call hypotf@PLT
+ # LOE rbx rbp r14 r15 r12d r13d xmm0
- movss %xmm0, 64(%rsp,%r14,4)
+ movss %xmm0, 64(%rsp, %r14, 4)
-/* Process special inputs in loop */
- jmp L(SPECIAL_VALUES_LOOP)
- # LOE rbx rbp r15 r12d r13d
+ /* Process special inputs in loop */
+ jmp L(SPECIAL_VALUES_LOOP)
+ # LOE rbx rbp r15 r12d r13d
END(_ZGVbN4vv_hypotf_sse4)
- .section .rodata, "a"
- .align 16
+ .section .rodata, "a"
+ .align 16
#ifdef __svml_shypot_data_internal_typedef
typedef unsigned int VUINT32;
-typedef struct
-{
- __declspec(align(16)) VUINT32 _sHiLoMask[4][1];
- __declspec(align(16)) VUINT32 _sAbsMask[4][1];
- __declspec(align(16)) VUINT32 _sHalf[4][1];
- __declspec(align(16)) VUINT32 _LowBoundary[4][1];
- __declspec(align(16)) VUINT32 _HighBoundary[4][1];
+typedef struct {
+ __declspec(align(16)) VUINT32 _sHiLoMask[4][1];
+ __declspec(align(16)) VUINT32 _sAbsMask[4][1];
+ __declspec(align(16)) VUINT32 _sHalf[4][1];
+ __declspec(align(16)) VUINT32 _LowBoundary[4][1];
+ __declspec(align(16)) VUINT32 _HighBoundary[4][1];
} __svml_shypot_data_internal;
#endif
__svml_shypot_data_internal:
- /* legacy algorithm */
- .long 0xFFF80000, 0xFFF80000, 0xFFF80000, 0xFFF80000 /* _sHiLoMask */
- .align 16
- .long 0x7fffffff, 0x7fffffff, 0x7fffffff, 0x7fffffff /* _sAbsMask */
- .align 16
- .long 0x3f000000, 0x3f000000, 0x3f000000, 0x3f000000 /* _sHalf */
- .align 16
- .long 0x1E300000, 0x1E300000, 0x1E300000, 0x1E300000 /* _LowBoundary */
- .align 16
- .long 0x60A00000, 0x60A00000, 0x60A00000, 0x60A00000 /* _HighBoundary */
- .align 16
- .type __svml_shypot_data_internal,@object
- .size __svml_shypot_data_internal,.-__svml_shypot_data_internal
+ /* legacy algorithm */
+ .long 0xFFF80000, 0xFFF80000, 0xFFF80000, 0xFFF80000 /* _sHiLoMask */
+ .align 16
+ .long 0x7fffffff, 0x7fffffff, 0x7fffffff, 0x7fffffff /* _sAbsMask */
+ .align 16
+ .long 0x3f000000, 0x3f000000, 0x3f000000, 0x3f000000 /* _sHalf */
+ .align 16
+ .long 0x1E300000, 0x1E300000, 0x1E300000, 0x1E300000 /* _LowBoundary */
+ .align 16
+ .long 0x60A00000, 0x60A00000, 0x60A00000, 0x60A00000 /* _HighBoundary */
+ .align 16
+ .type __svml_shypot_data_internal, @object
+ .size __svml_shypot_data_internal, .-__svml_shypot_data_internal
projects / thirdparty / glibc.git / commitdiff
