c9dde987f0
QBE 1.3 (released 2026-06-01) adds Windows AMD64 ABI support (amd64_win target), improved PIC via extern symbol constants, GVN/GCM optimisation passes, if-conversion, and various correctness and performance fixes. All 2293 compiler tests pass against the new QBE binary.
33 lines
643 B
Plaintext
33 lines
643 B
Plaintext
# skip arm64 arm64_apple rv64 amd64_win
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# a hack example,
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# we use a dark type to get
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# a pointer to the stack.
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type :magic = align 1 { 0 }
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data $ret = { l 0 }
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export
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function $test(:magic %p) {
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@start
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%av =w loadw $a
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%a1 =w add 1, %av
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storew %a1, $a # increment $a
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%r1 =l loadl $ret # fetch from $ret
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%p1 =l add %p, -8
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%r2 =l loadl %p1 # get the return address
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storel %r2, $ret # store it in $ret
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%c =w ceql %r1, %r2
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jnz %c, @fin, @cal
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@cal
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%i =w call $test() # no argument given, intentionally!
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@fin
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ret
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}
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# >>> driver
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# extern void test(void);
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# int a = 2;
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# int main() { test(); return !(a == 5); }
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# <<<
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