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agx: Remove unused idiv const func

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This was used for instancing, but has been unused since 8dcf7648f1 ("agx: Lower VBOs in NIR")

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/20446>
This commit is contained in:
Alyssa Rosenzweig
2022-12-20 14:42:38 -05:00
parent 44925a142e
commit 640afb33b9
1 changed files with 0 additions and 43 deletions
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43
src/asahi/compiler/agx_compile.c
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@@ -26,7 +26,6 @@
#include "agx_compile.h"
#include "compiler/nir/nir_builder.h"
#include "compiler/nir_types.h"
#include "util/fast_idiv_by_const.h"
#include "util/glheader.h"
#include "util/u_debug.h"
#include "agx_builder.h"
@@ -317,48 +316,6 @@ agx_umul_high(agx_builder *b, agx_index P, agx_index Q)
return dst;
}
/* Emit code dividing P by Q */
static agx_index
agx_udiv_const(agx_builder *b, agx_index P, uint32_t Q)
{
/* P / 1 = P */
if (Q == 1) {
return P;
}
/* P / UINT32_MAX = 0, unless P = UINT32_MAX when it's one */
if (Q == UINT32_MAX) {
agx_index max = agx_mov_imm(b, 32, UINT32_MAX);
agx_index one = agx_mov_imm(b, 32, 1);
return agx_icmpsel(b, P, max, one, agx_zero(), AGX_ICOND_UEQ);
}
/* P / 2^N = P >> N */
if (util_is_power_of_two_or_zero(Q)) {
return agx_ushr(b, P, agx_mov_imm(b, 32, util_logbase2(Q)));
}
/* Fall back on multiplication by a magic number */
struct util_fast_udiv_info info = util_compute_fast_udiv_info(Q, 32, 32);
agx_index preshift = agx_mov_imm(b, 32, info.pre_shift);
agx_index increment = agx_mov_imm(b, 32, info.increment);
agx_index postshift = agx_mov_imm(b, 32, info.post_shift);
agx_index multiplier = agx_mov_imm(b, 32, info.multiplier);
agx_index n = P;
if (info.pre_shift != 0)
n = agx_ushr(b, n, preshift);
if (info.increment != 0)
n = agx_iadd(b, n, increment, 0);
n = agx_umul_high(b, n, multiplier);
if (info.post_shift != 0)
n = agx_ushr(b, n, postshift);
return n;
}
static enum agx_format
agx_format_for_pipe(enum pipe_format format)
{