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stage2 ARM: Add tests for basic integer multiplication

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joachimschmidt557 2021-03-02 00:15:03 +01:00
parent 345ac53836
commit 278bd60732
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1 changed files with 34 additions and 0 deletions
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34
test/stage2/arm.zig
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@ -344,4 +344,38 @@ pub fn addCases(ctx: *TestContext) !void {
"",
);
}
{
var case = ctx.exe("integer multiplication", linux_arm);
// Simple u32 integer multiplication
case.addCompareOutput(
\\export fn _start() noreturn {
\\ assert(mul(1, 1) == 1);
\\ assert(mul(42, 1) == 42);
\\ assert(mul(1, 42) == 42);
\\ assert(mul(123, 42) == 5166);
\\ exit();
\\}
\\
\\fn mul(x: u32, y: u32) u32 {
\\ return x * y;
\\}
\\
\\fn assert(ok: bool) void {
\\ if (!ok) unreachable;
\\}
\\
\\fn exit() noreturn {
\\ asm volatile ("svc #0"
\\ :
\\ : [number] "{r7}" (1),
\\ [arg1] "{r0}" (0)
\\ : "memory"
\\ );
\\ unreachable;
\\}
,
"",
);
}
}