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r300: Turn a comment about presub into an assert.

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Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/14092>
This commit is contained in:
Emma Anholt
2021-12-06 13:58:25 -08:00
committed by Marge Bot
parent ce0e228ff4
commit 0e0a49039b
1 changed files with 6 additions and 2 deletions
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src/gallium/drivers/r300/compiler/radeon_optimize.c
+6 -2
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@@ -496,14 +496,18 @@ static int presub_helper(
return 1;
}
/* This function assumes that inst_add->U.I.SrcReg[0] and
* inst_add->U.I.SrcReg[1] aren't both negative. */
static void presub_replace_add(
struct rc_instruction * inst_add,
struct rc_instruction * inst_reader,
unsigned int src_index)
{
rc_presubtract_op presub_opcode;
/* This function assumes that inst_add->U.I.SrcReg[0] and
* inst_add->U.I.SrcReg[1] aren't both negative.
*/
assert(!(inst_add->U.I.SrcReg[1].Negate && inst_add->U.I.SrcReg[0].Negate));
if (inst_add->U.I.SrcReg[1].Negate || inst_add->U.I.SrcReg[0].Negate)
presub_opcode = RC_PRESUB_SUB;
else