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wazevo: fuzz, fix simd shl, shr, shuffle, vbitselect (#1797)

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This commit is contained in:
Edoardo Vacchi
2023-10-19 00:10:45 +02:00
committed by GitHub
parent 2ca59ecee8
commit 9264104c0b
12 changed files with 1160 additions and 24 deletions
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64
internal/integration_test/fuzzcases/fuzzcases_test.go
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@@ -545,3 +545,67 @@ func Test1793d(t *testing.T) {
require.Equal(t, uint64(0), m.Globals[1].Val)
})
}
// Test1797a tests that i8x16.shl uses the right register types when lowered.
func Test1797a(t *testing.T) {
if !platform.CompilerSupported() {
return
}
run(t, func(t *testing.T, r wazero.Runtime) {
mod, err := r.Instantiate(ctx, getWasmBinary(t, "1797a"))
require.NoError(t, err)
m := mod.(*wasm.ModuleInstance)
res, err := m.ExportedFunction("").Call(ctx)
require.NoError(t, err)
require.Equal(t, uint64(0), res[0])
})
}
// Test1797a tests that i16x8.shr_u uses the right register types when lowered.
func Test1797b(t *testing.T) {
if !platform.CompilerSupported() {
return
}
run(t, func(t *testing.T, r wazero.Runtime) {
mod, err := r.Instantiate(ctx, getWasmBinary(t, "1797b"))
require.NoError(t, err)
m := mod.(*wasm.ModuleInstance)
_, err = m.ExportedFunction("\x00\x00\x00\x00\x00").Call(ctx, 0, 0, 0, 0, 0, 0)
require.NoError(t, err)
require.Equal(t, uint64(2666130977255796624), m.Globals[0].Val)
require.Equal(t, uint64(9223142857682330634), m.Globals[0].ValHi)
})
}
// Test1797c tests that the program counter for V128*Shuffle is advanced correctly
// even when an unreachable instruction is present.
func Test1797c(t *testing.T) {
if !platform.CompilerSupported() {
return
}
run(t, func(t *testing.T, r wazero.Runtime) {
mod, err := r.Instantiate(ctx, getWasmBinary(t, "1797c"))
require.NoError(t, err, "wasm binary should build successfully")
m := mod.(*wasm.ModuleInstance)
params := make([]uint64, 20)
_, err = m.ExportedFunction("~zz\x00E1E\x00EE\x00$").Call(ctx, params...)
require.Error(t, err, "wasm error: unreachable")
})
}
// Test1797d tests that the registers are allocated correctly in Vbitselect.
func Test1797d(t *testing.T) {
if !platform.CompilerSupported() {
return
}
run(t, func(t *testing.T, r wazero.Runtime) {
mod, err := r.Instantiate(ctx, getWasmBinary(t, "1797d"))
require.NoError(t, err, "wasm binary should build successfully")
m := mod.(*wasm.ModuleInstance)
params := make([]uint64, 20)
_, err = m.ExportedFunction("p").Call(ctx, params...)
require.NoError(t, err)
require.Equal(t, uint64(15092115255309870764), m.Globals[2].Val)
require.Equal(t, uint64(9241386435284803069), m.Globals[2].ValHi)
})
}