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// |jit-test| skip-if: !hasDisassembler() || wasmCompileMode() != "ion" || !getBuildConfiguration("x64") || getBuildConfiguration("simulator"); include:codegen-x64-test.js
// This file checks folding rules for wasm {and,or,xor}{32,64} on x64 via Ion.
// See also binop-x64-ion-codegen.js, which is similar.
// These tests check that a folding has happened. The function is also run
// and the result value checked. Note, many of the functions ignore one or
// both of their parameters.
//
// In many cases the expected code contains an unnecessary move via a
// temporary, generally e/rcx, for example:
//
// mov %rdi, %rcx
// mov %rcx, %rax
//
// where rdi is the first arg reg (on Linux) and rax is the retval reg. This
// is documented in bug 1701164. If/when that gets fixed, we will presumably
// have to redo the expected-outputs here.
//
// The situation is complicated further because many of the expected outputs
// here depend on one of the two argument registers, but they are different in
// the ELF ABI (rdi, rsi) and the Win64 ABI (rcx, rdx). For the latter case,
// the abovementioned spurious move from the first arg reg into rcx
// disappears. Hence there is some fudging using wildcards in register names,
// and `no_prefix`, to make the tests pass with both ABIs.
function test(ty, wasm_insn, must_appear, param0, param1, expected_result,
options = {}) {
let t =
`(module
(func (export "f") (param ${ty}) (param ${ty}) (result ${ty})
${wasm_insn}
))`;
options.instanceBox = {value: null};
codegenTestX64_adhoc(t, "f", must_appear, options);
let ins = options.instanceBox.value;
assertEq(ins.exports.f(param0, param1), expected_result);
}
function test32(wasm_insn, must_appear, param0, param1, expected_result,
options) {
return test('i32', wasm_insn, must_appear, param0, param1, expected_result,
options);
}
function test64(wasm_insn, must_appear, param0, param1, expected_result,
options) {
return test('i64', wasm_insn, must_appear, param0, param1, expected_result,
options);
}
// {AND,OR,XOR}{32,64} folding: both args const
test32('(i32.and (i32.const 0x12345678) (i32.const 0x0f0f0f0f))',
'b8 08 06 04 02 mov \\$0x2040608, %eax',
0,0, 0x2040608);
test64('(i64.and (i64.const 0x1234567851505150) (i64.const 0x515051500f0f0f0f))',
'48 b8 00 01 00 01 50 50 10 10 mov \\$0x1010505001000100, %rax',
0n,0n, 0x1010505001000100n);
test32('(i32.or (i32.const 0x12345678) (i32.const 0x0f0e0d0c))',
'b8 7c 5f 3e 1f mov \\$0x1F3E5F7C, %eax',
0,0, 0x1f3e5f7c);
test64('(i64.or (i64.const 0x1234567851505150) (i64.const 0x515051500f0f1337))',
'48 b8 77 53 5f 5f 78 57 74 53 mov \\$0x537457785F5F5377, %rax',
0n,0n, 0x537457785f5f5377n);
test32('(i32.xor (i32.const 0x12345678) (i32.const 0x0f0e0d0c))',
'b8 74 5b 3a 1d mov \\$0x1D3A5B74, %eax',
0,0, 0x1d3a5b74);
test64('(i64.xor (i64.const 0x1234567851505150) (i64.const 0x515051500f0f1337))',
'48 b8 67 42 5f 5e 28 07 64 43 mov \\$0x436407285E5F4267, %rax',
0n,0n, 0x436407285e5f4267n);
// {AND,OR,XOR}{32,64} identities: first arg is all zeroes
test32('(i32.and (i32.const 0) (local.get 1))',
'33 c0 xor %eax, %eax',
1234,5678, 0);
test64('(i64.and (i64.const 0) (local.get 1))',
'33 c0 xor %eax, %eax',
1234n,5678n, 0n);
test32('(i32.or (i32.const 0) (local.get 1))',
`8b .. mov %e.., %ecx
8b c1 mov %ecx, %eax`,
1234,5678, 5678);
test64('(i64.or (i64.const 0) (local.get 1))',
`48 89 .. mov %r.., %rcx
48 89 c8 mov %rcx, %rax`,
1234n,5678n, 5678n);
test32('(i32.xor (i32.const 0) (local.get 1))',
`8b .. mov %e.., %ecx
8b c1 mov %ecx, %eax`,
1234,5678, 5678);
test64('(i64.xor (i64.const 0) (local.get 1))',
`48 89 .. mov %r.., %rcx
48 89 c8 mov %rcx, %rax`,
1234n,5678n, 5678n);
// {AND,OR,XOR}{32,64} identities: second arg is all zeroes
test32('(i32.and (local.get 0) (i32.const 0))',
'33 c0 xor %eax, %eax',
1234,5678, 0);
test64('(i64.and (local.get 0) (i64.const 0))',
'33 c0 xor %eax, %eax',
1234n,5678n, 0n);
test32('(i32.or (local.get 0) (i32.const 0))',
// 8b cf mov %edi, %ecx -- expected on Linux but not on Windows
`8b c1 mov %ecx, %eax`,
1234,5678, 1234, {no_prefix: true}); // required on Linux
test64('(i64.or (local.get 0) (i64.const 0))',
// 48 89 f9 mov %rdi, %rcx -- ditto
`48 89 c8 mov %rcx, %rax`,
1234n,5678n, 1234n, {no_prefix: true});
test32('(i32.xor (local.get 0) (i32.const 0))',
// 8b cf mov %edi, %ecx -- ditto
`8b c1 mov %ecx, %eax`,
1234,5678, 1234, {no_prefix: true});
test64('(i64.xor (local.get 0) (i64.const 0))',
// 48 89 f9 mov %rdi, %rcx -- ditto
`48 89 c8 mov %rcx, %rax`,
1234n,5678n, 1234n, {no_prefix: true});
// {AND,OR,XOR}{32,64} identities: first arg is all ones
test32('(i32.and (i32.const 0xffffffff) (local.get 1))',
`8b .. mov %e.., %ecx
8b c1 mov %ecx, %eax`,
1234,5678, 5678);
test64('(i64.and (i64.const 0xffffffffffffffff) (local.get 1))',
`48 89 .. mov %r.., %rcx
48 89 c8 mov %rcx, %rax`,
1234n,5678n, 5678n);
test32('(i32.or (i32.const 0xffffffff) (local.get 1))',
'b8 ff ff ff ff mov \\$-0x01, %eax',
1234,5678, -1/*0xffffffff*/);
test64('(i64.or (i64.const 0xffffffffffffffff) (local.get 1))',
'48 c7 c0 ff ff ff ff mov \\$-0x01, %rax',
1234n,5678n, -1n/*0xffffffffffffffff*/);
test32('(i32.xor (i32.const 0xffffffff) (local.get 1))',
`8b .. mov %e.., %ecx
8b c1 mov %ecx, %eax
f7 d0 not %eax`,
1234,5678, -5679);
test64('(i64.xor (i64.const 0xffffffffffffffff) (local.get 1))',
`48 89 .. mov %r.., %rcx
48 89 c8 mov %rcx, %rax
48 f7 d0 not %rax`,
1234n,5678n, -5679n);
// {AND,OR,XOR}{32,64} identities: second arg is all ones
test32('(i32.and (local.get 0) (i32.const 0xffffffff))',
// 8b cf mov %edi, %ecx -- expected on Linux but not on Windows
`8b c1 mov %ecx, %eax`,
1234,5678, 1234, {no_prefix: true}); // required on Linux
test64('(i64.and (local.get 0) (i64.const 0xffffffffffffffff))',
// 48 89 f9 mov %rdi, %rcx -- ditto
`48 89 c8 mov %rcx, %rax`,
1234n,5678n, 1234n, {no_prefix: true});
test32('(i32.or (local.get 0) (i32.const 0xffffffff))',
'b8 ff ff ff ff mov \\$-0x01, %eax',
1234,5678, -1/*0xffffffff*/);
test64('(i64.or (local.get 0) (i64.const 0xffffffffffffffff))',
'48 c7 c0 ff ff ff ff mov \\$-0x01, %rax',
1234n,5678n, -1n/*0xffffffffffffffff*/);
test32('(i32.xor (local.get 0) (i32.const 0xffffffff))',
// 8b cf mov %edi, %ecx -- ditto
`8b c1 mov %ecx, %eax
f7 d0 not %eax`,
1234,5678, -1235, {no_prefix: true});
test64('(i64.xor (local.get 0) (i64.const 0xffffffffffffffff))',
// 48 89 f9 mov %rdi, %rcx -- ditto
`48 89 c8 mov %rcx, %rax
48 f7 d0 not %rax`,
1234n,5678n, -1235n, {no_prefix: true});
// {AND,OR,XOR}{32,64} identities: both args the same
test32('(i32.and (local.get 0) (local.get 0))',
// 8b cf mov %edi, %ecx -- ditto
`8b c1 mov %ecx, %eax`,
1234,5678, 1234, {no_prefix: true});
test64('(i64.and (local.get 0) (local.get 0))',
// 48 89 f9 mov %rdi, %rcx -- ditto
`48 89 c8 mov %rcx, %rax`,
1234n,5678n, 1234n, {no_prefix: true});
test32('(i32.or (local.get 0) (local.get 0))',
// 8b cf mov %edi, %ecx -- ditto
`8b c1 mov %ecx, %eax`,
1234,5678, 1234, {no_prefix: true});
test64('(i64.or (local.get 0) (local.get 0))',
// 48 89 f9 mov %rdi, %rcx -- ditto
`48 89 c8 mov %rcx, %rax`,
1234n,5678n, 1234n, {no_prefix: true});
test32('(i32.xor (local.get 0) (local.get 0))',
'33 c0 xor %eax, %eax',
1234,5678, 0);
test64('(i64.xor (local.get 0) (local.get 0))',
'33 c0 xor %eax, %eax',
1234n,5678n, 0n);
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