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74 lines
2.3 KiB
74 lines
2.3 KiB
4 months ago
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#include <clc/clc.h>
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#include "../clcmacro.h"
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// From add_sat.ll
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_CLC_DECL char __clc_add_sat_s8(char, char);
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_CLC_DECL uchar __clc_add_sat_u8(uchar, uchar);
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_CLC_DECL short __clc_add_sat_s16(short, short);
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_CLC_DECL ushort __clc_add_sat_u16(ushort, ushort);
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_CLC_DECL int __clc_add_sat_s32(int, int);
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_CLC_DECL uint __clc_add_sat_u32(uint, uint);
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_CLC_DECL long __clc_add_sat_s64(long, long);
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_CLC_DECL ulong __clc_add_sat_u64(ulong, ulong);
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_CLC_OVERLOAD _CLC_DEF char add_sat(char x, char y) {
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short r = x + y;
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return convert_char_sat(r);
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}
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_CLC_OVERLOAD _CLC_DEF uchar add_sat(uchar x, uchar y) {
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ushort r = x + y;
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return convert_uchar_sat(r);
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}
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_CLC_OVERLOAD _CLC_DEF short add_sat(short x, short y) {
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int r = x + y;
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return convert_short_sat(r);
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}
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_CLC_OVERLOAD _CLC_DEF ushort add_sat(ushort x, ushort y) {
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uint r = x + y;
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return convert_ushort_sat(r);
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}
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_CLC_OVERLOAD _CLC_DEF int add_sat(int x, int y) {
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int r;
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if (__builtin_sadd_overflow(x, y, &r))
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// The oveflow can only occur if both are pos or both are neg,
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// thus we only need to check one operand
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return x > 0 ? INT_MAX : INT_MIN;
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return r;
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}
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_CLC_OVERLOAD _CLC_DEF uint add_sat(uint x, uint y) {
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uint r;
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if (__builtin_uadd_overflow(x, y, &r))
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return UINT_MAX;
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return r;
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}
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_CLC_OVERLOAD _CLC_DEF long add_sat(long x, long y) {
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long r;
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if (__builtin_saddl_overflow(x, y, &r))
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// The oveflow can only occur if both are pos or both are neg,
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// thus we only need to check one operand
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return x > 0 ? LONG_MAX : LONG_MIN;
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return r;
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}
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_CLC_OVERLOAD _CLC_DEF ulong add_sat(ulong x, ulong y) {
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ulong r;
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if (__builtin_uaddl_overflow(x, y, &r))
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return ULONG_MAX;
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return r;
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}
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_CLC_BINARY_VECTORIZE(_CLC_OVERLOAD _CLC_DEF, char, add_sat, char, char)
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_CLC_BINARY_VECTORIZE(_CLC_OVERLOAD _CLC_DEF, uchar, add_sat, uchar, uchar)
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_CLC_BINARY_VECTORIZE(_CLC_OVERLOAD _CLC_DEF, short, add_sat, short, short)
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_CLC_BINARY_VECTORIZE(_CLC_OVERLOAD _CLC_DEF, ushort, add_sat, ushort, ushort)
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_CLC_BINARY_VECTORIZE(_CLC_OVERLOAD _CLC_DEF, int, add_sat, int, int)
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_CLC_BINARY_VECTORIZE(_CLC_OVERLOAD _CLC_DEF, uint, add_sat, uint, uint)
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_CLC_BINARY_VECTORIZE(_CLC_OVERLOAD _CLC_DEF, long, add_sat, long, long)
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_CLC_BINARY_VECTORIZE(_CLC_OVERLOAD _CLC_DEF, ulong, add_sat, ulong, ulong)
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