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pan/bi: Add fclamp unit tests

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The negative cases here did not pass before this series, showing the bug
in the clamp optimization. By introducing the FCLAMP pseudo op, the bug
is fixed. Let's ensure we don't regress.

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 2021-08-04 12:12:31 -04:00
parent ac636f5adb
commit 4f347e96b8
1 changed files with 101 additions and 0 deletions
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101
src/panfrost/bifrost/test/test-optimizer.c
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@ -136,6 +136,107 @@ main(int argc, const char **argv)
NEGCASE(bi_fadd_f32_to(b, reg, bi_fadd_f32(b, bi_neg(bi_abs(x)), zero, BI_ROUND_NONE), y, BI_ROUND_NONE));
NEGCASE(bi_fadd_f32_to(b, reg, bi_fadd_f32(b, x, zero, BI_ROUND_NONE), y, BI_ROUND_NONE));
/* Check clamps are propagated */
CASE({
bi_instr *I = bi_fclamp_f32_to(b, reg, bi_fadd_f32(b, x, y, BI_ROUND_NONE));
I->clamp = BI_CLAMP_CLAMP_0_INF;
}, {
bi_instr *I = bi_fadd_f32_to(b, reg, x, y, BI_ROUND_NONE);
I->clamp = BI_CLAMP_CLAMP_0_INF;
});
CASE({
bi_instr *I = bi_fclamp_v2f16_to(b, reg, bi_fadd_v2f16(b, x, y, BI_ROUND_NONE));
I->clamp = BI_CLAMP_CLAMP_0_1;
}, {
bi_instr *I = bi_fadd_v2f16_to(b, reg, x, y, BI_ROUND_NONE);
I->clamp = BI_CLAMP_CLAMP_0_1;
});
/* Check clamps are composed */
CASE({
bi_instr *I = bi_fadd_f32_to(b, bi_temp(b->shader), x, y, BI_ROUND_NONE);
bi_instr *J = bi_fclamp_f32_to(b, reg, I->dest[0]);
I->clamp = BI_CLAMP_CLAMP_M1_1;
J->clamp = BI_CLAMP_CLAMP_0_INF;
}, {
bi_instr *I = bi_fadd_f32_to(b, reg, x, y, BI_ROUND_NONE);
I->clamp = BI_CLAMP_CLAMP_0_1;
});
CASE({
bi_instr *I = bi_fadd_f32_to(b, bi_temp(b->shader), x, y, BI_ROUND_NONE);
bi_instr *J = bi_fclamp_f32_to(b, reg, I->dest[0]);
I->clamp = BI_CLAMP_CLAMP_0_1;
J->clamp = BI_CLAMP_CLAMP_0_INF;
}, {
bi_instr *I = bi_fadd_f32_to(b, reg, x, y, BI_ROUND_NONE);
I->clamp = BI_CLAMP_CLAMP_0_1;
});
CASE({
bi_instr *I = bi_fadd_f32_to(b, bi_temp(b->shader), x, y, BI_ROUND_NONE);
bi_instr *J = bi_fclamp_f32_to(b, reg, I->dest[0]);
I->clamp = BI_CLAMP_CLAMP_0_INF;
J->clamp = BI_CLAMP_CLAMP_0_INF;
}, {
bi_instr *I = bi_fadd_f32_to(b, reg, x, y, BI_ROUND_NONE);
I->clamp = BI_CLAMP_CLAMP_0_INF;
});
CASE({
bi_instr *I = bi_fadd_v2f16_to(b, bi_temp(b->shader), x, y, BI_ROUND_NONE);
bi_instr *J = bi_fclamp_v2f16_to(b, reg, I->dest[0]);
I->clamp = BI_CLAMP_CLAMP_M1_1;
J->clamp = BI_CLAMP_CLAMP_0_INF;
}, {
bi_instr *I = bi_fadd_v2f16_to(b, reg, x, y, BI_ROUND_NONE);
I->clamp = BI_CLAMP_CLAMP_0_1;
});
CASE({
bi_instr *I = bi_fadd_v2f16_to(b, bi_temp(b->shader), x, y, BI_ROUND_NONE);
bi_instr *J = bi_fclamp_v2f16_to(b, reg, I->dest[0]);
I->clamp = BI_CLAMP_CLAMP_0_1;
J->clamp = BI_CLAMP_CLAMP_0_INF;
}, {
bi_instr *I = bi_fadd_v2f16_to(b, reg, x, y, BI_ROUND_NONE);
I->clamp = BI_CLAMP_CLAMP_0_1;
});
CASE({
bi_instr *I = bi_fadd_v2f16_to(b, bi_temp(b->shader), x, y, BI_ROUND_NONE);
bi_instr *J = bi_fclamp_v2f16_to(b, reg, I->dest[0]);
I->clamp = BI_CLAMP_CLAMP_0_INF;
J->clamp = BI_CLAMP_CLAMP_0_INF;
}, {
bi_instr *I = bi_fadd_v2f16_to(b, reg, x, y, BI_ROUND_NONE);
I->clamp = BI_CLAMP_CLAMP_0_INF;
});
/* We can't mix sizes */
NEGCASE({
bi_instr *I = bi_fclamp_f32_to(b, reg, bi_fadd_v2f16(b, x, y, BI_ROUND_NONE));
I->clamp = BI_CLAMP_CLAMP_0_1;
});
NEGCASE({
bi_instr *I = bi_fclamp_v2f16_to(b, reg, bi_fadd_f32(b, x, y, BI_ROUND_NONE));
I->clamp = BI_CLAMP_CLAMP_0_1;
});
/* We can't use addition by 0.0 for clamps due to signed zeros. */
NEGCASE({
bi_instr *I = bi_fadd_f32_to(b, reg, bi_fadd_f32(b, x, y, BI_ROUND_NONE), zero, BI_ROUND_NONE);
I->clamp = BI_CLAMP_CLAMP_M1_1;
});
NEGCASE({
bi_instr *I = bi_fadd_v2f16_to(b, reg, bi_fadd_v2f16(b, x, y, BI_ROUND_NONE), zero, BI_ROUND_NONE);
I->clamp = BI_CLAMP_CLAMP_0_1;
});
ralloc_free(ralloc_ctx);
TEST_END(nr_pass, nr_fail);
}