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pan/bi: Unit test new constant folding patterns

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Signed-off-by: Alyssa Rosenzweig <alyssa@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/12205>
This commit is contained in:
Alyssa Rosenzweig 2021-08-10 15:49:47 -04:00
parent ec76119dfb
commit cfd73b4542
1 changed files with 30 additions and 1 deletions
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31
src/panfrost/bifrost/test/test-constant-fold.c
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@ -32,7 +32,7 @@
fprintf(stderr, "Constant folding failed:\n"); \
bi_print_instr(instr, stderr); \
fprintf(stderr, "\n"); \
} else if (_value == expected) { \
} else if (_value == (expected)) { \
nr_pass++; \
} else { \
fprintf(stderr, "Got %" PRIx32 ", expected %" PRIx32 "\n", _value, expected); \
@ -80,6 +80,35 @@ main(int argc, const char **argv)
CASE(bi_mkvec_v2i16_to(b, reg, bi_swz_16(bi_imm_u32(0xCAFEBABE), true, true),
bi_swz_16(bi_imm_u32(0xCAFEBABE), false, false)), 0xBABECAFE);
{
bi_index u32 = bi_imm_u32(0xCAFEBABE);
bi_index a = bi_byte(u32, 0); /* 0xBE */
bi_index c = bi_byte(u32, 2); /* 0xFE */
CASE(bi_mkvec_v4i8_to(b, reg, a, a, a, a), 0xBEBEBEBE);
CASE(bi_mkvec_v4i8_to(b, reg, a, c, a, c), 0xFEBEFEBE);
CASE(bi_mkvec_v4i8_to(b, reg, c, a, c, a), 0xBEFEBEFE);
CASE(bi_mkvec_v4i8_to(b, reg, c, c, c, c), 0xFEFEFEFE);
}
/* Limited shifts required for texturing */
CASE(bi_lshift_or_i32_to(b, reg, bi_imm_u32(0xCAFE), bi_imm_u32(0xA0000), bi_imm_u8(4)), (0xCAFE << 4) | 0xA0000);
NEGCASE(bi_lshift_or_i32_to(b, reg, bi_imm_u32(0xCAFE), bi_not(bi_imm_u32(0xA0000)), bi_imm_u8(4)));
NEGCASE(bi_lshift_or_i32_to(b, reg, bi_not(bi_imm_u32(0xCAFE)), bi_imm_u32(0xA0000), bi_imm_u8(4)));
{
bi_instr *I = bi_lshift_or_i32_to(b, reg, bi_imm_u32(0xCAFE), bi_imm_u32(0xA0000), bi_imm_u8(4));
I->not_result = true;
NEGCASE(I);
}
/* Limited rounding needed for texturing */
CASE(bi_f32_to_u32_to(b, reg, bi_imm_f32(15.0), BI_ROUND_NONE), 15);
CASE(bi_f32_to_u32_to(b, reg, bi_imm_f32(15.9), BI_ROUND_NONE), 15);
CASE(bi_f32_to_u32_to(b, reg, bi_imm_f32(-20.4), BI_ROUND_NONE), 0);
NEGCASE(bi_f32_to_u32_to(b, reg, bi_imm_f32(-20.4), BI_ROUND_RTP));
NEGCASE(bi_f32_to_u32_to(b, reg, bi_imm_f32(-20.4), BI_ROUND_RTZ));
/* Instructions with non-constant sources cannot be constant folded */
NEGCASE(bi_swz_v2i16_to(b, reg, bi_temp(b->shader)));
NEGCASE(bi_mkvec_v2i16_to(b, reg, bi_temp(b->shader), bi_temp(b->shader)));