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Thumb2 assembly parsing and encoding for USAX.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140119 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jim Grosbach 2011-09-20 00:30:45 +00:00
parent 653419fff0
commit 6053cd956f
2 changed files with 20 additions and 0 deletions
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2
lib/Target/ARM/ARMInstrInfo.td
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@ -4962,6 +4962,8 @@ def : MnemonicAlias<"uhsubaddx", "uhsax">;
def : MnemonicAlias<"uqaddsubx", "uqasx">;
// UQSAX == UQSUBADDX
def : MnemonicAlias<"uqsubaddx", "uqsax">;
// USAX == USUBADDX
def : MnemonicAlias<"usubaddx", "usax">;
// LDRSBT/LDRHT/LDRSHT post-index offset if optional.
// Note that the write-back output register is a dummy operand for MC (it's

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

@ -2912,3 +2912,21 @@ _func:
@ CHECK: usat16 r2, #2, r7 @ encoding: [0xa7,0xf3,0x02,0x02]
@ CHECK: usat16 r3, #15, r5 @ encoding: [0xa5,0xf3,0x0f,0x03]
@------------------------------------------------------------------------------
@ USAX
@------------------------------------------------------------------------------
usax r2, r3, r4
it ne
usaxne r6, r1, r9
usubaddx r2, r3, r4
it ne
usubaddxne r6, r1, r9
@ CHECK: usax r2, r3, r4 @ encoding: [0xe3,0xfa,0x44,0xf2]
@ CHECK: it ne @ encoding: [0x18,0xbf]
@ CHECK: usaxne r6, r1, r9 @ encoding: [0xe1,0xfa,0x49,0xf6]
@ CHECK: usax r2, r3, r4 @ encoding: [0xe3,0xfa,0x44,0xf2]
@ CHECK: it ne @ encoding: [0x18,0xbf]
@ CHECK: usaxne r6, r1, r9 @ encoding: [0xe1,0xfa,0x49,0xf6]