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| author | Owen Anderson <resistor@mac.com> | 2011-09-26 21:06:22 +0000 |
|---|---|---|
| committer | Owen Anderson <resistor@mac.com> | 2011-09-26 21:06:22 +0000 |
| commit | 0afa0094afdfe589f407feb76948f273b414b278 (patch) | |
| tree | dcc693d8abcbd0897ad5600232a3ced34d1ee48e /lib/Target/ARM/ARMInstrThumb2.td | |
| parent | ad2d46d0a5a3e8593a2754b618acd6e9cfe39453 (diff) | |
| download | llvm-0afa0094afdfe589f407feb76948f273b414b278.tar.gz llvm-0afa0094afdfe589f407feb76948f273b414b278.tar.bz2 llvm-0afa0094afdfe589f407feb76948f273b414b278.tar.xz | |
ASR #32 is not allowed on Thumb2 USAT and SSAT instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140560 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/ARM/ARMInstrThumb2.td')
| -rw-r--r-- | lib/Target/ARM/ARMInstrThumb2.td | 20 |
1 files changed, 18 insertions, 2 deletions
diff --git a/lib/Target/ARM/ARMInstrThumb2.td b/lib/Target/ARM/ARMInstrThumb2.td index 44804bdbf3..e8874c7f21 100644 --- a/lib/Target/ARM/ARMInstrThumb2.td +++ b/lib/Target/ARM/ARMInstrThumb2.td @@ -28,6 +28,18 @@ def it_mask : Operand<i32> { let ParserMatchClass = it_mask_asmoperand; } +// t2_shift_imm: An integer that encodes a shift amount and the type of shift +// (asr or lsl). The 6-bit immediate encodes as: +// {5} 0 ==> lsl +// 1 asr +// {4-0} imm5 shift amount. +// asr #32 not allowed +def t2_shift_imm : Operand<i32> { + let PrintMethod = "printShiftImmOperand"; + let ParserMatchClass = ShifterImmAsmOperand; + let DecoderMethod = "DecodeT2ShifterImmOperand"; +} + // Shifted operands. No register controlled shifts for Thumb2. // Note: We do not support rrx shifted operands yet. def t2_so_reg : Operand<i32>, // reg imm @@ -2023,7 +2035,8 @@ class T2SatI<dag oops, dag iops, InstrItinClass itin, } def t2SSAT: T2SatI< - (outs rGPR:$Rd), (ins imm1_32:$sat_imm, rGPR:$Rn, shift_imm:$sh), + (outs rGPR:$Rd), + (ins imm1_32:$sat_imm, rGPR:$Rn, t2_shift_imm:$sh), NoItinerary, "ssat", "\t$Rd, $sat_imm, $Rn$sh", []> { let Inst{31-27} = 0b11110; let Inst{25-22} = 0b1100; @@ -2047,7 +2060,8 @@ def t2SSAT16: T2SatI< } def t2USAT: T2SatI< - (outs rGPR:$Rd), (ins imm0_31:$sat_imm, rGPR:$Rn, shift_imm:$sh), + (outs rGPR:$Rd), + (ins imm0_31:$sat_imm, rGPR:$Rn, t2_shift_imm:$sh), NoItinerary, "usat", "\t$Rd, $sat_imm, $Rn$sh", []> { let Inst{31-27} = 0b11110; let Inst{25-22} = 0b1110; @@ -3928,6 +3942,8 @@ def : t2InstAlias<"sxtb16${p} $Rd, $Rm", (t2SXTB16 rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>; def : t2InstAlias<"sxth${p} $Rd, $Rm", (t2SXTH rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>; +def : t2InstAlias<"sxth${p} $Rd, $Rm", + (t2SXTH rGPR:$Rd, rGPR:$Rm, 0, pred:$p)>; def : t2InstAlias<"uxtab${p} $Rd, $Rn, $Rm", (t2UXTAB rGPR:$Rd, rGPR:$Rn, rGPR:$Rm, 0, pred:$p)>; |