diff options
| author | Bill Wendling <isanbard@gmail.com> | 2010-11-29 00:42:50 +0000 |
|---|---|---|
| committer | Bill Wendling <isanbard@gmail.com> | 2010-11-29 00:42:50 +0000 |
| commit | d19ac0c75a019273e03922e2252ed262578a43d1 (patch) | |
| tree | d101f888529f4ca448e74ad039ec91a69e15c86a | |
| parent | b4b544debac44da375d316e410ec447d967036a9 (diff) | |
Add Thumb encodings for REV instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120277 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/Target/ARM/ARMInstrThumb.td | 56 | ||||
| -rw-r--r-- | test/MC/ARM/thumb.s | 9 |
2 files changed, 45 insertions, 20 deletions
diff --git a/lib/Target/ARM/ARMInstrThumb.td b/lib/Target/ARM/ARMInstrThumb.td index acb85e76f0..b7efe1bd5c 100644 --- a/lib/Target/ARM/ARMInstrThumb.td +++ b/lib/Target/ARM/ARMInstrThumb.td @@ -1028,30 +1028,48 @@ def tORR : T1sIt<(outs tGPR:$dst), (ins tGPR:$lhs, tGPR:$rhs), IIC_iBITr, } // Swaps -def tREV : T1pI<(outs tGPR:$dst), (ins tGPR:$src), IIC_iUNAr, - "rev", "\t$dst, $src", - [(set tGPR:$dst, (bswap tGPR:$src))]>, +def tREV : T1pI<(outs tGPR:$Rd), (ins tGPR:$Rm), IIC_iUNAr, + "rev", "\t$Rd, $Rm", + [(set tGPR:$Rd, (bswap tGPR:$Rm))]>, Requires<[IsThumb, IsThumb1Only, HasV6]>, - T1Misc<{1,0,1,0,0,0,?}>; - -def tREV16 : T1pI<(outs tGPR:$dst), (ins tGPR:$src), IIC_iUNAr, - "rev16", "\t$dst, $src", - [(set tGPR:$dst, - (or (and (srl tGPR:$src, (i32 8)), 0xFF), - (or (and (shl tGPR:$src, (i32 8)), 0xFF00), - (or (and (srl tGPR:$src, (i32 8)), 0xFF0000), - (and (shl tGPR:$src, (i32 8)), 0xFF000000)))))]>, + T1Misc<{1,0,1,0,0,0,?}> { + // A8.6.134 + bits<3> Rm; + bits<3> Rd; + let Inst{5-3} = Rm; + let Inst{2-0} = Rd; +} + +def tREV16 : T1pI<(outs tGPR:$Rd), (ins tGPR:$Rm), IIC_iUNAr, + "rev16", "\t$Rd, $Rm", + [(set tGPR:$Rd, + (or (and (srl tGPR:$Rm, (i32 8)), 0xFF), + (or (and (shl tGPR:$Rm, (i32 8)), 0xFF00), + (or (and (srl tGPR:$Rm, (i32 8)), 0xFF0000), + (and (shl tGPR:$Rm, (i32 8)), 0xFF000000)))))]>, Requires<[IsThumb, IsThumb1Only, HasV6]>, - T1Misc<{1,0,1,0,0,1,?}>; + T1Misc<{1,0,1,0,0,1,?}> { + // A8.6.135 + bits<3> Rm; + bits<3> Rd; + let Inst{5-3} = Rm; + let Inst{2-0} = Rd; +} -def tREVSH : T1pI<(outs tGPR:$dst), (ins tGPR:$src), IIC_iUNAr, - "revsh", "\t$dst, $src", - [(set tGPR:$dst, +def tREVSH : T1pI<(outs tGPR:$Rd), (ins tGPR:$Rm), IIC_iUNAr, + "revsh", "\t$Rd, $Rm", + [(set tGPR:$Rd, (sext_inreg - (or (srl (and tGPR:$src, 0xFF00), (i32 8)), - (shl tGPR:$src, (i32 8))), i16))]>, + (or (srl (and tGPR:$Rm, 0xFF00), (i32 8)), + (shl tGPR:$Rm, (i32 8))), i16))]>, Requires<[IsThumb, IsThumb1Only, HasV6]>, - T1Misc<{1,0,1,0,1,1,?}>; + T1Misc<{1,0,1,0,1,1,?}> { + // A8.6.135 + bits<3> Rm; + bits<3> Rd; + let Inst{5-3} = Rm; + let Inst{2-0} = Rd; +} // rotate right register def tROR : T1sIt<(outs tGPR:$dst), (ins tGPR:$lhs, tGPR:$rhs), IIC_iMOVsr, diff --git a/test/MC/ARM/thumb.s b/test/MC/ARM/thumb.s index 20ff022ab7..7e7dde3f99 100644 --- a/test/MC/ARM/thumb.s +++ b/test/MC/ARM/thumb.s @@ -1,4 +1,4 @@ -@ RUN: llvm-mc -triple thumb-apple-darwin -show-encoding < %s | FileCheck %s +@ RUN: llvm-mc -triple thumbv6-apple-darwin -show-encoding < %s | FileCheck %s .code 16 @ CHECK: cmp r1, r2 @ encoding: [0x91,0x42] @@ -12,3 +12,10 @@ @ CHECK: blx r9 @ encoding: [0xc8,0x47] blx r9 + +@ CHECK: rev r2, r3 @ encoding: [0x1a,0xba] +@ CHECK: rev16 r3, r4 @ encoding: [0x63,0xba] +@ CHECK: revsh r5, r6 @ encoding: [0xf5,0xba] + rev r2, r3 + rev16 r3, r4 + revsh r5, r6 |