irgen: Unnecessary instructions generated for boolean expression

mewmew / uc

A compiler for the µC language.

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Closed mewmew closed 8 years ago

mewmew commented 8 years ago

uclang testdata/quiet/lexer/l04.c

Remove zext from conditional binary expressions, so that m.cond may correctly identify the boolean value.

-%8 = icmp eq i32 1, 0
-%9 = zext i1 %8 to i32
-%10 = icmp ne i32 %9, 0
+%8 = icmp eq i32 1, 0

mewmew commented 8 years ago

Marked as a future ambition for now.

mewmew commented 8 years ago

Fixed as of revision a62d7fc7077bc1d89c6a99685263d2820c64f619.