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Thumb2 assembly parsing and encoding for UASX. 

llvm-svn: 140085
This commit is contained in:
Jim Grosbach 2011-09-19 23:05:22 +00:00
parent d01aee587f
commit a6e6504e2a
2 changed files with 20 additions and 0 deletions
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2
llvm/lib/Target/ARM/ARMInstrInfo.td
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@ -4952,6 +4952,8 @@ def : MnemonicAlias<"shaddsubx", "shasx">;
def : MnemonicAlias<"shsubaddx", "shsax">;
// SSAX == SSUBADDX
def : MnemonicAlias<"ssubaddx", "ssax">;
// UASX == UADDSUBX
def : MnemonicAlias<"uaddsubx", "uasx">;
// LDRSBT/LDRHT/LDRSHT post-index offset if optional.
// Note that the write-back output register is a dummy operand for MC (it's

18
llvm/test/MC/ARM/basic-thumb2-instructions.s
View File

@ -2686,3 +2686,21 @@ _func:
@ CHECK: ite gt @ encoding: [0xcc,0xbf]
@ CHECK: uadd16gt r1, r2, r3 @ encoding: [0x92,0xfa,0x43,0xf1]
@ CHECK: uadd8le r1, r2, r3 @ encoding: [0x82,0xfa,0x43,0xf1]
@------------------------------------------------------------------------------
@ UASX
@------------------------------------------------------------------------------
uasx r9, r12, r0
it eq
uasxeq r9, r12, r0
uaddsubx r9, r12, r0
it eq
uaddsubxeq r9, r12, r0
@ CHECK: uasx r9, r12, r0 @ encoding: [0xac,0xfa,0x40,0xf9]
@ CHECK: it eq @ encoding: [0x08,0xbf]
@ CHECK: uasxeq r9, r12, r0 @ encoding: [0xac,0xfa,0x40,0xf9]
@ CHECK: uasx r9, r12, r0 @ encoding: [0xac,0xfa,0x40,0xf9]
@ CHECK: it eq @ encoding: [0x08,0xbf]
@ CHECK: uasxeq r9, r12, r0 @ encoding: [0xac,0xfa,0x40,0xf9]