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stage2 ARM: add testcases for non-leaf fns, parameters, return values

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This commit is contained in:
joachimschmidt557 2020-09-27 11:27:40 +02:00
parent cfe486e388
commit fb58fb2d8d
3 changed files with 152 additions and 75 deletions
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12
src/codegen/arm.zig
View File

@ -402,7 +402,7 @@ pub const Instruction = union(enum) {
return Instruction{
.DataProcessing = .{
.cond = @enumToInt(cond),
.i = if (op2 == .Immediate) 1 else 0,
.i = @boolToInt(op2 == .Immediate),
.opcode = @enumToInt(opcode),
.s = s,
.rn = rn.id(),
@ -430,11 +430,11 @@ pub const Instruction = union(enum) {
.rd = rd.id(),
.offset = offset.toU12(),
.load_store = load_store,
.write_back = if (write_back) 1 else 0,
.write_back = @boolToInt(write_back),
.byte_word = byte_word,
.up_down = if (positive) 1 else 0,
.pre_post = if (pre_index) 1 else 0,
.imm = if (offset == .Immediate) 0 else 1,
.up_down = @boolToInt(positive),
.pre_post = @boolToInt(pre_index),
.imm = @boolToInt(offset != .Immediate),
},
};
}
@ -454,7 +454,7 @@ pub const Instruction = union(enum) {
.register_list = @bitCast(u16, reg_list),
.rn = rn.id(),
.load_store = load_store,
.write_back = if (write_back) 1 else 0,
.write_back = @boolToInt(write_back),
.psr_or_user = psr_or_user,
.up_down = up_down,
.pre_post = pre_post,

116
test/stage2/arm.zig Normal file
View File

@ -0,0 +1,116 @@
const std = @import("std");
const TestContext = @import("../../src/test.zig").TestContext;
const linux_arm = std.zig.CrossTarget{
.cpu_arch = .arm,
.os_tag = .linux,
};
pub fn addCases(ctx: *TestContext) !void {
{
var case = ctx.exe("hello world", linux_arm);
// Regular old hello world
case.addCompareOutput(
\\export fn _start() noreturn {
\\ print();
\\ exit();
\\}
\\
\\fn print() void {
\\ asm volatile ("svc #0"
\\ :
\\ : [number] "{r7}" (4),
\\ [arg1] "{r0}" (1),
\\ [arg2] "{r1}" (@ptrToInt("Hello, World!\n")),
\\ [arg3] "{r2}" (14)
\\ : "memory"
\\ );
\\ return;
\\}
\\
\\fn exit() noreturn {
\\ asm volatile ("svc #0"
\\ :
\\ : [number] "{r7}" (1),
\\ [arg1] "{r0}" (0)
\\ : "memory"
\\ );
\\ unreachable;
\\}
,
"Hello, World!\n",
);
}
{
var case = ctx.exe("parameters and return values", linux_arm);
// Testing simple parameters and return values
//
// TODO: The parameters to the asm statement in print() had to
// be in a specific order because otherwise the write to r0
// would overwrite the len parameter which resides in r0
case.addCompareOutput(
\\export fn _start() noreturn {
\\ print(id(14));
\\ exit();
\\}
\\
\\fn id(x: u32) u32 {
\\ return x;
\\}
\\
\\fn print(len: u32) void {
\\ asm volatile ("svc #0"
\\ :
\\ : [number] "{r7}" (4),
\\ [arg3] "{r2}" (len),
\\ [arg1] "{r0}" (1),
\\ [arg2] "{r1}" (@ptrToInt("Hello, World!\n"))
\\ : "memory"
\\ );
\\ return;
\\}
\\
\\fn exit() noreturn {
\\ asm volatile ("svc #0"
\\ :
\\ : [number] "{r7}" (1),
\\ [arg1] "{r0}" (0)
\\ : "memory"
\\ );
\\ unreachable;
\\}
,
"Hello, World!\n",
);
}
{
var case = ctx.exe("non-leaf functions", linux_arm);
// Testing non-leaf functions
case.addCompareOutput(
\\export fn _start() noreturn {
\\ foo();
\\ exit();
\\}
\\
\\fn foo() void {
\\ bar();
\\}
\\
\\fn bar() void {}
\\
\\fn exit() noreturn {
\\ asm volatile ("svc #0"
\\ :
\\ : [number] "{r7}" (1),
\\ [arg1] "{r0}" (0)
\\ : "memory"
\\ );
\\ unreachable;
\\}
,
"",
);
}
}

99
test/stage2/test.zig
View File

@ -21,11 +21,6 @@ const linux_riscv64 = std.zig.CrossTarget{
.os_tag = .linux,
};
const linux_arm = std.zig.CrossTarget{
.cpu_arch = .arm,
.os_tag = .linux,
};
const wasi = std.zig.CrossTarget{
.cpu_arch = .wasm32,
.os_tag = .wasi,
@ -35,6 +30,7 @@ pub fn addCases(ctx: *TestContext) !void {
try @import("zir.zig").addCases(ctx);
try @import("cbe.zig").addCases(ctx);
try @import("spu-ii.zig").addCases(ctx);
try @import("arm.zig").addCases(ctx);
{
var case = ctx.exe("hello world with updates", linux_x64);
@ -76,7 +72,7 @@ pub fn addCases(ctx: *TestContext) !void {
\\ );
\\ unreachable;
\\}
,
,
"Hello, World!\n",
);
// Now change the message only
@ -108,7 +104,7 @@ pub fn addCases(ctx: *TestContext) !void {
\\ );
\\ unreachable;
\\}
,
,
"What is up? This is a longer message that will force the data to be relocated in virtual address space.\n",
);
// Now we print it twice.
@ -184,42 +180,7 @@ pub fn addCases(ctx: *TestContext) !void {
\\ );
\\ unreachable;
\\}
,
"Hello, World!\n",
);
}
{
var case = ctx.exe("hello world", linux_arm);
// Regular old hello world
case.addCompareOutput(
\\export fn _start() noreturn {
\\ print();
\\ exit();
\\}
\\
\\fn print() void {
\\ asm volatile ("svc #0"
\\ :
\\ : [number] "{r7}" (4),
\\ [arg1] "{r0}" (1),
\\ [arg2] "{r1}" (@ptrToInt("Hello, World!\n")),
\\ [arg3] "{r2}" (14)
\\ : "memory"
\\ );
\\ return;
\\}
\\
\\fn exit() noreturn {
\\ asm volatile ("svc #0"
\\ :
\\ : [number] "{r7}" (1),
\\ [arg1] "{r0}" (0)
\\ : "memory"
\\ );
\\ unreachable;
\\}
,
,
"Hello, World!\n",
);
}
@ -244,7 +205,7 @@ pub fn addCases(ctx: *TestContext) !void {
\\ );
\\ unreachable;
\\}
,
,
"Hello, World!\n",
);
}
@ -271,7 +232,7 @@ pub fn addCases(ctx: *TestContext) !void {
\\ );
\\ unreachable;
\\}
,
,
"",
);
}
@ -298,7 +259,7 @@ pub fn addCases(ctx: *TestContext) !void {
\\ );
\\ unreachable;
\\}
,
,
"",
);
}
@ -329,7 +290,7 @@ pub fn addCases(ctx: *TestContext) !void {
\\ );
\\ unreachable;
\\}
,
,
"",
);
@ -362,7 +323,7 @@ pub fn addCases(ctx: *TestContext) !void {
\\ );
\\ unreachable;
\\}
,
,
"",
);
@ -398,7 +359,7 @@ pub fn addCases(ctx: *TestContext) !void {
\\ );
\\ unreachable;
\\}
,
,
"",
);
@ -435,7 +396,7 @@ pub fn addCases(ctx: *TestContext) !void {
\\ );
\\ unreachable;
\\}
,
,
"",
);
@ -465,7 +426,7 @@ pub fn addCases(ctx: *TestContext) !void {
\\ );
\\ unreachable;
\\}
,
,
"",
);
@ -499,7 +460,7 @@ pub fn addCases(ctx: *TestContext) !void {
\\ );
\\ unreachable;
\\}
,
,
"",
);
@ -523,7 +484,7 @@ pub fn addCases(ctx: *TestContext) !void {
\\ );
\\ unreachable;
\\}
,
,
"",
);
@ -562,7 +523,7 @@ pub fn addCases(ctx: *TestContext) !void {
\\ );
\\ unreachable;
\\}
,
,
"hello\nhello\nhello\nhello\n",
);
@ -599,7 +560,7 @@ pub fn addCases(ctx: *TestContext) !void {
\\ );
\\ unreachable;
\\}
,
,
"",
);
@ -641,7 +602,7 @@ pub fn addCases(ctx: *TestContext) !void {
\\ );
\\ unreachable;
\\}
,
,
"",
);
@ -693,7 +654,7 @@ pub fn addCases(ctx: *TestContext) !void {
\\ );
\\ unreachable;
\\}
,
,
"",
);
@ -755,7 +716,7 @@ pub fn addCases(ctx: *TestContext) !void {
\\ );
\\ unreachable;
\\}
,
,
"",
);
@ -788,7 +749,7 @@ pub fn addCases(ctx: *TestContext) !void {
\\ );
\\ unreachable;
\\}
,
,
"",
);
@ -820,7 +781,7 @@ pub fn addCases(ctx: *TestContext) !void {
\\ );
\\ unreachable;
\\}
,
,
"",
);
@ -845,7 +806,7 @@ pub fn addCases(ctx: *TestContext) !void {
\\ );
\\ unreachable;
\\}
,
,
"",
);
@ -871,7 +832,7 @@ pub fn addCases(ctx: *TestContext) !void {
\\ );
\\ unreachable;
\\}
,
,
"",
);
@ -904,7 +865,7 @@ pub fn addCases(ctx: *TestContext) !void {
\\ );
\\ unreachable;
\\}
,
,
"hello\nhello\nhello\nhello\nhello\n",
);
}
@ -923,7 +884,7 @@ pub fn addCases(ctx: *TestContext) !void {
\\ bar();
\\}
\\fn bar() void {}
,
,
"42\n",
);
@ -941,7 +902,7 @@ pub fn addCases(ctx: *TestContext) !void {
\\ bar();
\\}
\\fn bar() void {}
,
,
"42\n",
);
@ -957,10 +918,10 @@ pub fn addCases(ctx: *TestContext) !void {
\\ bar();
\\}
\\fn bar() void {}
,
// This is what you get when you take the bits of the IEE-754
// representation of 42.0 and reinterpret them as an unsigned
// integer. Guess that's a bug in wasmtime.
,
// This is what you get when you take the bits of the IEE-754
// representation of 42.0 and reinterpret them as an unsigned
// integer. Guess that's a bug in wasmtime.
"1109917696\n",
);
}