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[SPARC][IAS] Add setuw alias for set #125149

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Merged
merged 2 commits into from
Feb 3, 2025
Merged

[SPARC][IAS] Add setuw alias for set #125149

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6b51393
[𝘀𝗽𝗿] initial version
koachan Jan 31, 2025
329c941
Make setuw V9-only
koachan Feb 1, 2025
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2 changes: 2 additions & 0 deletions llvm/lib/Target/Sparc/SparcInstrAliases.td
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Expand Up @@ -605,6 +605,8 @@ def : InstAlias<"unimp", (UNIMP 0), 0>;
// interchangeable with `unimp` all the time.
def : MnemonicAlias<"illtrap", "unimp">;

def : MnemonicAlias<"setuw", "set">, Requires<[HasV9]>;

def : MnemonicAlias<"iflush", "flush">;

def : MnemonicAlias<"stub", "stb">;
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8 changes: 8 additions & 0 deletions llvm/test/MC/Sparc/sparcv9-synthetic-instructions.s
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Expand Up @@ -78,3 +78,11 @@ setx (0x0123456700000000+0x0000000089abcdef), %g1, %o0
! V9: sllx %g1, 32, %g1 ! encoding: [0x83,0x28,0x70,0x20]
! V9: or %g1, %o0, %o0 ! encoding: [0x90,0x10,0x40,0x08]
setx (.BB1-.BB0), %g1, %o0

!! In V9, setuw is a mnemonic alias for set.
! V8: error: invalid instruction mnemonic
! V9: sethi %hi(32768), %g1 ! encoding: [0x03,0b00AAAAAA,A,A]
! V9: ! fixup A - offset: 0, value: %hi(32768), kind: fixup_sparc_hi22
setuw 32768, %g1
! V9: mov 1, %g1 ! encoding: [0x82,0x10,0x20,0x01]
setuw 1, %g1