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| author | Julian Brown <julian@codesourcery.com> | 2007-01-04 15:32:50 +0000 |
|---|---|---|
| committer | Julian Brown <julian@codesourcery.com> | 2007-01-04 15:32:50 +0000 |
| commit | 627907b7d8b96d26997dc649bebaab6df7071ea3 (patch) | |
| tree | 49b4684d6d1523fa6b797ab4adbda0611f66bf73 /gas/config/tc-arm.c | |
| parent | 97828f498d32872eb90e8d705cbadb4be525f082 (diff) | |
| download | gdb-627907b7d8b96d26997dc649bebaab6df7071ea3.zip gdb-627907b7d8b96d26997dc649bebaab6df7071ea3.tar.gz gdb-627907b7d8b96d26997dc649bebaab6df7071ea3.tar.bz2 | |
* config/tc-arm.c (do_neon_shl_imm): Swap rN, rM.
(do_neon_qshl_imm): Likewise.
(do_neon_rshl): New function. Handle rounding variants of
v{q}shl-by-register.
(insns): Use do_neon_rshl for vrshl, vqrshl.
Diffstat (limited to 'gas/config/tc-arm.c')
| -rw-r--r-- | gas/config/tc-arm.c | 41 |
1 files changed, 37 insertions, 4 deletions
diff --git a/gas/config/tc-arm.c b/gas/config/tc-arm.c index 0f2425a..a95fcb67 100644 --- a/gas/config/tc-arm.c +++ b/gas/config/tc-arm.c @@ -11393,6 +11393,18 @@ do_neon_shl_imm (void) enum neon_shape rs = neon_select_shape (NS_DDD, NS_QQQ, NS_NULL); struct neon_type_el et = neon_check_type (3, rs, N_EQK, N_SU_ALL | N_KEY, N_EQK | N_SGN); + unsigned int tmp; + + /* VSHL/VQSHL 3-register variants have syntax such as: + vshl.xx Dd, Dm, Dn + whereas other 3-register operations encoded by neon_three_same have + syntax like: + vadd.xx Dd, Dn, Dm + (i.e. with Dn & Dm reversed). Swap operands[1].reg and operands[2].reg + here. */ + tmp = inst.operands[2].reg; + inst.operands[2].reg = inst.operands[1].reg; + inst.operands[1].reg = tmp; inst.instruction = NEON_ENC_INTEGER (inst.instruction); neon_three_same (neon_quad (rs), et.type == NT_unsigned, et.size); } @@ -11405,6 +11417,7 @@ do_neon_qshl_imm (void) { enum neon_shape rs = neon_select_shape (NS_DDI, NS_QQI, NS_NULL); struct neon_type_el et = neon_check_type (2, rs, N_EQK, N_SU_ALL | N_KEY); + inst.instruction = NEON_ENC_IMMED (inst.instruction); neon_imm_shift (TRUE, et.type == NT_unsigned, neon_quad (rs), et, inst.operands[2].imm); @@ -11414,11 +11427,31 @@ do_neon_qshl_imm (void) enum neon_shape rs = neon_select_shape (NS_DDD, NS_QQQ, NS_NULL); struct neon_type_el et = neon_check_type (3, rs, N_EQK, N_SU_ALL | N_KEY, N_EQK | N_SGN); + unsigned int tmp; + + /* See note in do_neon_shl_imm. */ + tmp = inst.operands[2].reg; + inst.operands[2].reg = inst.operands[1].reg; + inst.operands[1].reg = tmp; inst.instruction = NEON_ENC_INTEGER (inst.instruction); neon_three_same (neon_quad (rs), et.type == NT_unsigned, et.size); } } +static void +do_neon_rshl (void) +{ + enum neon_shape rs = neon_select_shape (NS_DDD, NS_QQQ, NS_NULL); + struct neon_type_el et = neon_check_type (3, rs, + N_EQK, N_EQK, N_SU_ALL | N_KEY); + unsigned int tmp; + + tmp = inst.operands[2].reg; + inst.operands[2].reg = inst.operands[1].reg; + inst.operands[1].reg = tmp; + neon_three_same (neon_quad (rs), et.type == NT_unsigned, et.size); +} + static int neon_cmode_for_logic_imm (unsigned immediate, unsigned *immbits, int size) { @@ -15653,10 +15686,10 @@ static const struct asm_opcode insns[] = NUF(vqaddq, 0000010, 3, (RNQ, oRNQ, RNQ), neon_dyadic_i64_su), NUF(vqsub, 0000210, 3, (RNDQ, oRNDQ, RNDQ), neon_dyadic_i64_su), NUF(vqsubq, 0000210, 3, (RNQ, oRNQ, RNQ), neon_dyadic_i64_su), - NUF(vrshl, 0000500, 3, (RNDQ, oRNDQ, RNDQ), neon_dyadic_i64_su), - NUF(vrshlq, 0000500, 3, (RNQ, oRNQ, RNQ), neon_dyadic_i64_su), - NUF(vqrshl, 0000510, 3, (RNDQ, oRNDQ, RNDQ), neon_dyadic_i64_su), - NUF(vqrshlq, 0000510, 3, (RNQ, oRNQ, RNQ), neon_dyadic_i64_su), + NUF(vrshl, 0000500, 3, (RNDQ, oRNDQ, RNDQ), neon_rshl), + NUF(vrshlq, 0000500, 3, (RNQ, oRNQ, RNQ), neon_rshl), + NUF(vqrshl, 0000510, 3, (RNDQ, oRNDQ, RNDQ), neon_rshl), + NUF(vqrshlq, 0000510, 3, (RNQ, oRNQ, RNQ), neon_rshl), /* If not immediate, fall back to neon_dyadic_i64_su. shl_imm should accept I8 I16 I32 I64, qshl_imm should accept S8 S16 S32 S64 U8 U16 U32 U64. */ |