diff options
| author | Jim Grosbach <grosbach@apple.com> | 2011-09-16 18:32:30 +0000 |
|---|---|---|
| committer | Jim Grosbach <grosbach@apple.com> | 2011-09-16 18:32:30 +0000 |
| commit | b105b997a49c809bfd464ae7691d5ee45d34f446 (patch) | |
| tree | db652f29922a6dd5ff96a579ef0621955eda4c08 | |
| parent | 05ec8f7ac90179cccb476512c872db95bfec418d (diff) | |
Thumb2 assembly parsing and encoding for SSAT.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139926 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/Target/ARM/ARMInstrThumb2.td | 11 | ||||
| -rw-r--r-- | test/MC/ARM/basic-thumb2-instructions.s | 16 |
2 files changed, 25 insertions, 2 deletions
diff --git a/lib/Target/ARM/ARMInstrThumb2.td b/lib/Target/ARM/ARMInstrThumb2.td index 21e70fa83e..1d86a2a80b 100644 --- a/lib/Target/ARM/ARMInstrThumb2.td +++ b/lib/Target/ARM/ARMInstrThumb2.td @@ -2019,7 +2019,7 @@ def t2SSAT16: T2SatI< } def t2USAT: T2SatI< - (outs rGPR:$Rd), (ins i32imm:$sat_imm, rGPR:$Rn, shift_imm:$sh), + (outs rGPR:$Rd), (ins imm0_31:$sat_imm, rGPR:$Rn, shift_imm:$sh), NoItinerary, "usat", "\t$Rd, $sat_imm, $Rn$sh", [/* For disassembly only; pattern left blank */]> { let Inst{31-27} = 0b11110; @@ -2028,7 +2028,7 @@ def t2USAT: T2SatI< let Inst{15} = 0; } -def t2USAT16: T2SatI<(outs rGPR:$Rd), (ins i32imm:$sat_imm, rGPR:$Rn), +def t2USAT16: T2SatI<(outs rGPR:$Rd), (ins imm0_15:$sat_imm, rGPR:$Rn), NoItinerary, "usat16", "\t$Rd, $sat_imm, $Rn", [/* For disassembly only; pattern left blank */]>, @@ -3854,3 +3854,10 @@ def : t2InstAlias<"rsb${s}${p} $Rdn, $Rm", def : t2InstAlias<"rsb${s}${p} $Rdn, $ShiftedRm", (t2RSBrs rGPR:$Rdn, rGPR:$Rdn, t2_so_reg:$ShiftedRm, pred:$p, cc_out:$s)>; + +// SSAT/USAT optional shift operand. +def : t2InstAlias<"ssat${p} $Rd, $sat_imm, $Rn", + (t2SSAT rGPR:$Rd, imm1_32:$sat_imm, rGPR:$Rn, 0, pred:$p)>; +def : t2InstAlias<"usat${p} $Rd, $sat_imm, $Rn", + (t2USAT rGPR:$Rd, imm0_31:$sat_imm, rGPR:$Rn, 0, pred:$p)>; + diff --git a/test/MC/ARM/basic-thumb2-instructions.s b/test/MC/ARM/basic-thumb2-instructions.s index e5441aea79..3b25feb899 100644 --- a/test/MC/ARM/basic-thumb2-instructions.s +++ b/test/MC/ARM/basic-thumb2-instructions.s @@ -2049,6 +2049,22 @@ _func: @------------------------------------------------------------------------------ +@ SSAT +@------------------------------------------------------------------------------ + ssat r8, #1, r10 + ssat r8, #1, r10, lsl #0 + ssat r8, #1, r10, lsl #31 + ssat r8, #1, r10, asr #32 + ssat r8, #1, r10, asr #1 + +@ CHECK: ssat r8, #1, r10 @ encoding: [0x0a,0xf3,0x00,0x08] +@ CHECK: ssat r8, #1, r10 @ encoding: [0x0a,0xf3,0x00,0x08] +@ CHECK: ssat r8, #1, r10, lsl #31 @ encoding: [0x0a,0xf3,0xc0,0x78] +@ CHECK: ssat r8, #1, r10, asr #32 @ encoding: [0x2a,0xf3,0x00,0x08] +@ CHECK: ssat r8, #1, r10, asr #1 @ encoding: [0x2a,0xf3,0x40,0x08] + + +@------------------------------------------------------------------------------ @ SUB (register) @------------------------------------------------------------------------------ sub.w r5, r2, r12, rrx |