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tcg: Convert sub to TCGOutOpSubtract

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Create a special subclass for sub, because two backends can
support "subtract from immediate".  Drop all backend support
for an immediate as the second operand, as we transform sub
to add during optimize.

Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2025-01-06 21:57:43 -08:00
parent a3b37bc6fa
commit 3f057e2400
15 changed files with 169 additions and 174 deletions
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tcg/mips/tcg-target-con-set.h
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@ -24,7 +24,6 @@ C_O1_I2(r, r, rI)
C_O1_I2(r, r, rIK)
C_O1_I2(r, r, rJ)
C_O1_I2(r, r, rzW)
C_O1_I2(r, rz, rN)
C_O1_I2(r, rz, rz)
C_O1_I4(r, rz, rz, rz, 0)
C_O1_I4(r, rz, rz, rz, rz)