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disassembler addv instruction (#20776)

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Walter Bright 2025-01-25 03:29:48 -08:00 • committed by GitHub
parent ab76473eb7
commit 128d56dd04
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1 changed files with 13 additions and 3 deletions
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16
compiler/src/dmd/backend/arm/disasmarm.d
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@ -1857,12 +1857,21 @@ void disassemble(uint c) @trusted
uint Rd = field(ins, 4, 0); uint Rd = field(ins, 4, 0);
//printf("ins:%08x Q:%d U:%d size:%d opcode:%x Rn:%d Rd:%d\n", ins, Q, U, size, opcode, Rn, Rd); //printf("ins:%08x Q:%d U:%d size:%d opcode:%x Rn:%d Rd:%d\n", ins, Q, U, size, opcode, Rn, Rd);
if (U == 1 && opcode == 3) immutable string[8] sizeQ = ["8b","16b","4h","8h","","4s","",""];
if (U == 0 && opcode == 0x1B) // https://www.scs.stanford.edu/~zyedidia/arm64/addv_advsimd.html
{
p1 = "addv";
p2 = fregString(rbuf[0 .. 4], "bhs "[size], Rd);
uint n = snprintf(buf.ptr, cast(uint)buf.length, "v%d.%s", Rn, sizeQ[size * 2 + Q].ptr);
p3 = buf[0 .. n];
}
else if (U == 1 && opcode == 3) // https://www.scs.stanford.edu/~zyedidia/arm64/uaddlv_advsimd.html
{ {
p1 = "uaddlv"; p1 = "uaddlv";
p2 = fregString(rbuf[0 .. 4], "hsd "[size], Rd); p2 = fregString(rbuf[0 .. 4], "hsd "[size], Rd);
immutable string[8] sizeQ = ["8b","16b","4h","8h","","4s","",""];
uint n = snprintf(buf.ptr, cast(uint)buf.length, "v%d.%s", Rn, sizeQ[size * 2 + Q].ptr); uint n = snprintf(buf.ptr, cast(uint)buf.length, "v%d.%s", Rn, sizeQ[size * 2 + Q].ptr);
p3 = buf[0 .. n]; p3 = buf[0 .. n];
} }
@ -2759,8 +2768,9 @@ unittest
unittest unittest
{ {
int line64 = __LINE__; int line64 = __LINE__;
string[65] cases64 = // 64 bit code gen string[66] cases64 = // 64 bit code gen
[ [
"0E 31 BB FF addv b31,v31.8b",
"2E 30 38 00 uaddlv h0,v0.8b", "2E 30 38 00 uaddlv h0,v0.8b",
"0E 20 58 00 cnt v0.8b,v0.8b", "0E 20 58 00 cnt v0.8b,v0.8b",
"1E 27 01 00 fmov s0,w8", "1E 27 01 00 fmov s0,w8",