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[x64] Add `VECTOR_ROTATE_LEFT_I32` overflow-test 

Edit one of the lanes in this unit-test to be larger than the width of
the element-size to ensure that this case is handled correctly.

It should only mask the lower `log2(32)=5` bits of the input, causing
`33`(`100001`) to be `1`(`000001`).
This commit is contained in:
Wunkolo 2022-02-03 13:42:19 -08:00 committed by Rick Gibbed
parent 337f0b2948
commit f356cf5df8
1 changed files with 2 additions and 2 deletions
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4
src/xenia/cpu/testing/vector_rotate_left_test.cc
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@ -2,7 +2,7 @@
****************************************************************************** ******************************************************************************
* Xenia : Xbox 360 Emulator Research Project * * Xenia : Xbox 360 Emulator Research Project *
****************************************************************************** ******************************************************************************
* Copyright 2014 Ben Vanik. All rights reserved. * * Copyright 2022 Ben Vanik. All rights reserved. *
* Released under the BSD license - see LICENSE in the root for more details. * * Released under the BSD license - see LICENSE in the root for more details. *
****************************************************************************** ******************************************************************************
*/ */
@ -62,7 +62,7 @@ TEST_CASE("VECTOR_ROTATE_LEFT_I32", "[instr]") {
test.Run( test.Run(
[](PPCContext* ctx) { [](PPCContext* ctx) {
ctx->v[4] = vec128i(0x00000001, 0x00000001, 0x80000000, 0x80000000); ctx->v[4] = vec128i(0x00000001, 0x00000001, 0x80000000, 0x80000000);
ctx->v[5] = vec128i(0, 1, 1, 2); ctx->v[5] = vec128i(0, 1, 33, 2);
}, },
[](PPCContext* ctx) { [](PPCContext* ctx) {
auto result = ctx->v[3]; auto result = ctx->v[3];