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ARM: Add a few missing add->sub aliases w/ 'w' suffix.

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Aliases for adding a negative immediate when using an explicit 'w'
suffix. E.g.,
        adds.w r2, #-16
        adds.w r2, r2, #-16
        addw r2, #-16
        addw r2, #-16
        addw r2, r2, #-16

rdar://11330769

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155946 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jim Grosbach 2012-05-01 21:17:34 +00:00
parent 94b590f8fa
commit 54319e2a8c
2 changed files with 23 additions and 0 deletions
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11
lib/Target/ARM/ARMInstrThumb2.td
View File

@ -3969,6 +3969,17 @@ def : t2InstAlias<"add${s}${p} $Rdn, $imm",
def : t2InstAlias<"add${p} $Rdn, $imm",
(t2SUBri12 GPRnopc:$Rdn, GPRnopc:$Rdn, imm0_4095_neg:$imm, pred:$p)>;
def : t2InstAlias<"add${s}${p}.w $Rd, $Rn, $imm",
(t2SUBri GPRnopc:$Rd, GPRnopc:$Rn, t2_so_imm_neg:$imm, pred:$p,
cc_out:$s)>;
def : t2InstAlias<"addw${p} $Rd, $Rn, $imm",
(t2SUBri12 GPRnopc:$Rd, GPR:$Rn, imm0_4095_neg:$imm, pred:$p)>;
def : t2InstAlias<"add${s}${p}.w $Rdn, $imm",
(t2SUBri GPRnopc:$Rdn, GPRnopc:$Rdn, t2_so_imm_neg:$imm, pred:$p,
cc_out:$s)>;
def : t2InstAlias<"addw${p} $Rdn, $imm",
(t2SUBri12 GPRnopc:$Rdn, GPRnopc:$Rdn, imm0_4095_neg:$imm, pred:$p)>;
// Aliases for SUB without the ".w" optional width specifier.
def : t2InstAlias<"sub${s}${p} $Rd, $Rn, $imm",

12
test/MC/ARM/basic-thumb2-instructions.s
View File

@ -80,6 +80,12 @@ _func:
adds r2, r2, #56
adds r2, #56
adds.w r2, #-16
adds.w r2, r2, #-16
addw r2, #-16
addw r2, #-16
addw r2, r2, #-16
@ CHECK: itet eq @ encoding: [0x0a,0xbf]
@ CHECK: addeq r1, r2, #4 @ encoding: [0x11,0x1d]
@ CHECK: addwne r5, r3, #1023 @ encoding: [0x03,0xf2,0xff,0x35]
@ -96,6 +102,12 @@ _func:
@ CHECK: adds r2, #56 @ encoding: [0x38,0x32]
@ CHECK: adds r2, #56 @ encoding: [0x38,0x32]
@ CHECK: subs.w r2, r2, #16 @ encoding: [0xb2,0xf1,0x10,0x02]
@ CHECK: subs.w r2, r2, #16 @ encoding: [0xb2,0xf1,0x10,0x02]
@ CHECK: subw r2, r2, #16 @ encoding: [0xa2,0xf2,0x10,0x02]
@ CHECK: subw r2, r2, #16 @ encoding: [0xa2,0xf2,0x10,0x02]
@ CHECK: subw r2, r2, #16 @ encoding: [0xa2,0xf2,0x10,0x02]
@------------------------------------------------------------------------------
@ ADD (register)