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tcg/i386: Optimize cmpsel with constant 0 operand 3.

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These can be simplified to and/andc, avoiding the load of
the zero into a register.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2024-09-06 22:01:12 -07:00
parent e58b977238
commit d8387f0ee0
3 changed files with 27 additions and 8 deletions
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tcg/i386/tcg-target-con-str.h
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@ -28,6 +28,7 @@ REGS('s', ALL_BYTEL_REGS & ~SOFTMMU_RESERVE_REGS) /* qemu_st8_i32 data */
*/
CONST('e', TCG_CT_CONST_S32)
CONST('I', TCG_CT_CONST_I32)
CONST('O', TCG_CT_CONST_ZERO)
CONST('T', TCG_CT_CONST_TST)
CONST('W', TCG_CT_CONST_WSZ)
CONST('Z', TCG_CT_CONST_U32)