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graphics: implement RDNA2 64-bit first-set-bit

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nmzik
2026-08-15 09:51:57 +02:00
parent 0ffacf22e6
commit 28a913894d
8 changed files with 58 additions and 23 deletions
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tests/shaderCfgTests.cpp
+5
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@@ -2931,6 +2931,7 @@ void TestNewShaderRecompilerScalarB64Alu() {
EncodeSop2(0x21, 26, 24, 0), // s_lshr_b64 s[26:27], s[24:25], s0
EncodeSop2(0x25, 28, 132, 130), // s_bfm_b64 s[28:29], 4, 2
EncodeSop1(0x10, 30, 26), // s_bcnt1_i32_b64 s30, s[26:27]
EncodeSop1(0x14, 31, 26), // s_ff1_i32_b64 s31, s[26:27]
EncodeSop1(0x16, 106, 26), // s_flbit_i32_b64 vcc_lo, s[26:27]
EncodeSop1(0x3b, 32, 30), // s_bitreplicate_b64_b32 s[32:33], s30
EncodeSop2(0x29, 34, 32, 255), // s_bfe_u64 s[34:35], s[32:33], 0x00040002
@@ -2989,6 +2990,8 @@ void TestNewShaderRecompilerScalarB64Alu() {
"new decoder did not decode old-backed S_BFM_B64");
Check(Common::ContainsStr(result.decoded_dump, "s_bcnt1_i32_b64 s30, s26"),
"new decoder did not decode old-backed S_BCNT1_I32_B64");
Check(Common::ContainsStr(result.decoded_dump, "s_ff1_i32_b64 s31, s26"),
"new decoder did not decode RDNA2 S_FF1_I32_B64");
Check(Common::ContainsStr(result.decoded_dump, "s_flbit_i32_b64 vcc_lo, s26"),
"new decoder did not decode RDNA2 S_FLBIT_I32_B64");
Check(Common::ContainsStr(result.decoded_dump,
@@ -3042,6 +3045,8 @@ void TestNewShaderRecompilerScalarB64Alu() {
"S_BFM_B64 did not lower to paired-dword IR");
Check(Common::ContainsStr(result.ir_dump, "BitCountU64 s30, s26"),
"S_BCNT1_I32_B64 did not lower to paired-source bit count IR");
Check(Common::ContainsStr(result.ir_dump, "FindLsbU64 s31, s26"),
"S_FF1_I32_B64 did not lower to paired-source bit search IR");
Check(Common::ContainsStr(result.ir_dump, "FindMsbFromHighU64 vcc_lo, s26"),
"S_FLBIT_I32_B64 did not lower to paired-source leading-zero IR");
Check(Common::ContainsStr(result.ir_dump, "BitReplicateB64B32 s32, s30"),