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MIPS queue for July 23rd, 2019 

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Merge remote-tracking branch 'remotes/amarkovic2/tags/mips-queue-jul-23-2019' into staging

MIPS queue for July 23rd, 2019

# gpg: Signature made Mon 22 Jul 2019 18:34:29 BST
# gpg:                using RSA key D4972A8967F75A65
# gpg: Good signature from "Aleksandar Markovic <amarkovic@wavecomp.com>" [unknown]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 8526 FBF1 5DA3 811F 4A01  DD75 D497 2A89 67F7 5A65

* remotes/amarkovic2/tags/mips-queue-jul-23-2019:
  target/mips: Fix emulation of MSA pack instructions on big endian hosts
  target/mips: Add 'fall through' comments for handling nanoMips' SHXS, SWXS

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Peter Maydell 2019-07-23 12:49:39 +01:00
parent cec9f94f2d 5122958258
commit 4da6c0f9eb
2 changed files with 76 additions and 0 deletions
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74
target/mips/msa_helper.c
View File

@ -2113,6 +2113,24 @@ void helper_msa_pckev_df(CPUMIPSState *env, uint32_t df, uint32_t wd,
switch (df) {
case DF_BYTE:
#if defined(HOST_WORDS_BIGENDIAN)
pwd->b[8] = pws->b[9];
pwd->b[10] = pws->b[13];
pwd->b[12] = pws->b[1];
pwd->b[14] = pws->b[5];
pwd->b[0] = pwt->b[9];
pwd->b[2] = pwt->b[13];
pwd->b[4] = pwt->b[1];
pwd->b[6] = pwt->b[5];
pwd->b[9] = pws->b[11];
pwd->b[13] = pws->b[3];
pwd->b[1] = pwt->b[11];
pwd->b[5] = pwt->b[3];
pwd->b[11] = pws->b[15];
pwd->b[3] = pwt->b[15];
pwd->b[15] = pws->b[7];
pwd->b[7] = pwt->b[7];
#else
pwd->b[15] = pws->b[14];
pwd->b[13] = pws->b[10];
pwd->b[11] = pws->b[6];
@ -2129,8 +2147,19 @@ void helper_msa_pckev_df(CPUMIPSState *env, uint32_t df, uint32_t wd,
pwd->b[4] = pwt->b[8];
pwd->b[8] = pws->b[0];
pwd->b[0] = pwt->b[0];
#endif
break;
case DF_HALF:
#if defined(HOST_WORDS_BIGENDIAN)
pwd->h[4] = pws->h[5];
pwd->h[6] = pws->h[1];
pwd->h[0] = pwt->h[5];
pwd->h[2] = pwt->h[1];
pwd->h[5] = pws->h[7];
pwd->h[1] = pwt->h[7];
pwd->h[7] = pws->h[3];
pwd->h[3] = pwt->h[3];
#else
pwd->h[7] = pws->h[6];
pwd->h[5] = pws->h[2];
pwd->h[3] = pwt->h[6];
@ -2139,12 +2168,20 @@ void helper_msa_pckev_df(CPUMIPSState *env, uint32_t df, uint32_t wd,
pwd->h[2] = pwt->h[4];
pwd->h[4] = pws->h[0];
pwd->h[0] = pwt->h[0];
#endif
break;
case DF_WORD:
#if defined(HOST_WORDS_BIGENDIAN)
pwd->w[2] = pws->w[3];
pwd->w[0] = pwt->w[3];
pwd->w[3] = pws->w[1];
pwd->w[1] = pwt->w[1];
#else
pwd->w[3] = pws->w[2];
pwd->w[1] = pwt->w[2];
pwd->w[2] = pws->w[0];
pwd->w[0] = pwt->w[0];
#endif
break;
case DF_DOUBLE:
pwd->d[1] = pws->d[0];
@ -2164,6 +2201,24 @@ void helper_msa_pckod_df(CPUMIPSState *env, uint32_t df, uint32_t wd,
switch (df) {
case DF_BYTE:
#if defined(HOST_WORDS_BIGENDIAN)
pwd->b[7] = pwt->b[6];
pwd->b[5] = pwt->b[2];
pwd->b[3] = pwt->b[14];
pwd->b[1] = pwt->b[10];
pwd->b[15] = pws->b[6];
pwd->b[13] = pws->b[2];
pwd->b[11] = pws->b[14];
pwd->b[9] = pws->b[10];
pwd->b[6] = pwt->b[4];
pwd->b[2] = pwt->b[12];
pwd->b[14] = pws->b[4];
pwd->b[10] = pws->b[12];
pwd->b[4] = pwt->b[0];
pwd->b[12] = pws->b[0];
pwd->b[0] = pwt->b[8];
pwd->b[8] = pws->b[8];
#else
pwd->b[0] = pwt->b[1];
pwd->b[2] = pwt->b[5];
pwd->b[4] = pwt->b[9];
@ -2180,8 +2235,19 @@ void helper_msa_pckod_df(CPUMIPSState *env, uint32_t df, uint32_t wd,
pwd->b[11] = pws->b[7];
pwd->b[7] = pwt->b[15];
pwd->b[15] = pws->b[15];
#endif
break;
case DF_HALF:
#if defined(HOST_WORDS_BIGENDIAN)
pwd->h[3] = pwt->h[2];
pwd->h[1] = pwt->h[6];
pwd->h[7] = pws->h[2];
pwd->h[5] = pws->h[6];
pwd->h[2] = pwt->h[0];
pwd->h[6] = pws->h[0];
pwd->h[0] = pwt->h[4];
pwd->h[4] = pws->h[4];
#else
pwd->h[0] = pwt->h[1];
pwd->h[2] = pwt->h[5];
pwd->h[4] = pws->h[1];
@ -2190,12 +2256,20 @@ void helper_msa_pckod_df(CPUMIPSState *env, uint32_t df, uint32_t wd,
pwd->h[5] = pws->h[3];
pwd->h[3] = pwt->h[7];
pwd->h[7] = pws->h[7];
#endif
break;
case DF_WORD:
#if defined(HOST_WORDS_BIGENDIAN)
pwd->w[1] = pwt->w[0];
pwd->w[3] = pws->w[0];
pwd->w[0] = pwt->w[2];
pwd->w[2] = pws->w[2];
#else
pwd->w[0] = pwt->w[1];
pwd->w[2] = pws->w[1];
pwd->w[1] = pwt->w[3];
pwd->w[3] = pws->w[3];
#endif
break;
case DF_DOUBLE:
pwd->d[0] = pwt->d[1];

2
target/mips/translate.c
View File

@ -20141,12 +20141,14 @@ static void gen_p_lsx(DisasContext *ctx, int rd, int rs, int rt)
switch (extract32(ctx->opcode, 7, 4)) {
case NM_SHXS:
check_nms(ctx);
/* fall through */
case NM_LHXS:
case NM_LHUXS:
tcg_gen_shli_tl(t0, t0, 1);
break;
case NM_SWXS:
check_nms(ctx);
/* fall through */
case NM_LWXS:
case NM_LWC1XS:
case NM_SWC1XS: