| author |  Joachim Schmidt <joachim.schmidt557@outlook.com> 2021-04-09 18:08:57+02:00 |
| committer | Joachim Schmidt <joachim.schmidt557@outlook.com> 2021-04-11 10:19:36+02:00 |
| log | 4fe575f47bbc10ee56f47bd9e7e1b8dacd35fc41 |
| tree | 06320c8df899d0eec76f49e439d94380178270be |
| parent | a6ddc12b33d4df48670e7752228b4257933d79c7 |
| signature |  Commit is signed but in an unrecognized format. |
stage2 ARM: Add fibonacci test
2 files changed, 40 insertions(+), 1 deletions(-)
src- test
- stage2
src/codegen.zig+1-1
| ... | @@ -1745,7 +1745,7 @@ fn Function(comptime arch: std.Target.Cpu.Arch) type { | ... | @@ -1745,7 +1745,7 @@ fn Function(comptime arch: std.Target.Cpu.Arch) type { |
| 1745 | 1745 | ||
| 1746 | const result = self.args[arg_index]; | 1746 | const result = self.args[arg_index]; |
| 1747 | const mcv = switch (arch) { | 1747 | const mcv = switch (arch) { |
| 1748 | // TODO support stack-only registers on all target architectures | 1748 | // TODO support stack-only arguments on all target architectures |
| 1749 | .arm, .armeb, .aarch64, .aarch64_32, .aarch64_be => switch (result) { | 1749 | .arm, .armeb, .aarch64, .aarch64_32, .aarch64_be => switch (result) { |
| 1750 | // Copy registers to the stack | 1750 | // Copy registers to the stack |
| 1751 | .register => |reg| blk: { | 1751 | .register => |reg| blk: { |
test/stage2/arm.zig+39
| ... | @@ -419,4 +419,43 @@ pub fn addCases(ctx: *TestContext) !void { | ... | @@ -419,4 +419,43 @@ pub fn addCases(ctx: *TestContext) !void { |
| 419 | "", | 419 | "", |
| 420 | ); | 420 | ); |
| 421 | } | 421 | } |
| 422 | |||
| 423 | { | ||
| 424 | var case = ctx.exe("recursive fibonacci", linux_arm); | ||
| 425 | case.addCompareOutput( | ||
| 426 | \\export fn _start() noreturn { | ||
| 427 | \\ assert(fib(0) == 0); | ||
| 428 | \\ assert(fib(1) == 1); | ||
| 429 | \\ assert(fib(2) == 1); | ||
| 430 | \\ assert(fib(3) == 2); | ||
| 431 | \\ assert(fib(10) == 55); | ||
| 432 | \\ assert(fib(20) == 6765); | ||
| 433 | \\ exit(); | ||
| 434 | \\} | ||
| 435 | \\ | ||
| 436 | \\fn fib(n: u32) u32 { | ||
| 437 | \\ if (n < 2) { | ||
| 438 | \\ return n; | ||
| 439 | \\ } else { | ||
| 440 | \\ return fib(n - 2) + fib(n - 1); | ||
| 441 | \\ } | ||
| 442 | \\} | ||
| 443 | \\ | ||
| 444 | \\fn assert(ok: bool) void { | ||
| 445 | \\ if (!ok) unreachable; | ||
| 446 | \\} | ||
| 447 | \\ | ||
| 448 | \\fn exit() noreturn { | ||
| 449 | \\ asm volatile ("svc #0" | ||
| 450 | \\ : | ||
| 451 | \\ : [number] "{r7}" (1), | ||
| 452 | \\ [arg1] "{r0}" (0) | ||
| 453 | \\ : "memory" | ||
| 454 | \\ ); | ||
| 455 | \\ unreachable; | ||
| 456 | \\} | ||
| 457 | , | ||
| 458 | "", | ||
| 459 | ); | ||
| 460 | } | ||
| 422 | } | 461 | } |