blaise/vendor/qbe/test/echo.ssa
Graeme Geldenhuys 25de8be212 Fix compilation errors; vendor QBE 1.2; end-to-end Hello World works
Fix TProgram.Uses reserved-word clash (renamed to UsedUnits), nested
brace-comment in uParser.pas, and missing uAST in Blaise.pas uses clause.

Vendor QBE 1.2 source in vendor/qbe/ (built locally with make; binary
excluded via .gitignore). End-to-end pipeline confirmed: Blaise compiles
Hello World and Calc (6*7=42) to native x86_64 Linux binaries.

71/71 FPCUnit tests passing.
2026-04-20 16:38:57 +01:00

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export
function w $main(w %argc, l %argv) {
@start
%fmt =l alloc8 8
storel 1663398693, %fmt # "%s%c"
%av0 =l add %argv, 8
%ac0 =w sub %argc, 1
@loop
%av =l phi @start %av0, @loop2 %av1
%ac =w phi @start %ac0, @loop2 %ac1
%c0 =w ceqw %ac, 0
jnz %c0, @end, @loop1
@loop1
%c1 =w ceqw %ac, 1
jnz %c1, @last, @nolast
@last
jmp @loop2
@nolast
jmp @loop2
@loop2
%sep =w phi @last 10, @nolast 32
%arg =l loadl %av
%r =w call $printf(l %fmt, ..., l %arg, w %sep)
%av1 =l add %av, 8
%ac1 =w sub %ac, 1
jmp @loop
@end
ret 0
}
# >>> output
# a b c
# <<<