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annotate test/test_shift.h @ 41:c6e0df09b86f

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*: performance improvements with old GCC, reimplement altivec
author Paper <paper@tflc.us>
date Mon, 28 Apr 2025 16:31:59 -0400
parents 4b5a557aa64f
children
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cf04071d2148 impl: initial NEON support; test: verify bit shifting functions
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1 static int test_shift(void)
cf04071d2148 impl: initial NEON support; test: verify bit shifting functions
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2 {
cf04071d2148 impl: initial NEON support; test: verify bit shifting functions
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3 int ret = 0;
cf04071d2148 impl: initial NEON support; test: verify bit shifting functions
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4
cf04071d2148 impl: initial NEON support; test: verify bit shifting functions
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5 ret |= (vec_urshift(0xFFFFFFFF, 16) != 0xFFFF);
cf04071d2148 impl: initial NEON support; test: verify bit shifting functions
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6 ret |= (vec_ulshift(0xFFFF, 16) != 0xFFFF0000);
cf04071d2148 impl: initial NEON support; test: verify bit shifting functions
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7 ret |= (vec_rshift(-0xFFFF, 8) != -0x100);
cf04071d2148 impl: initial NEON support; test: verify bit shifting functions
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8 ret |= (vec_lshift(-0xFFFF, 8) != -0xFFFF00);
cf04071d2148 impl: initial NEON support; test: verify bit shifting functions
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9
cf04071d2148 impl: initial NEON support; test: verify bit shifting functions
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10 return ret;
cf04071d2148 impl: initial NEON support; test: verify bit shifting functions
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11 }