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X-OriginatorOrg: arm.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 31 May 2024 09:25:52.8031 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 07a4a6f1-2b08-4fe2-9b59-08dc8153aad3 X-MS-Exchange-CrossTenant-Id: f34e5979-57d9-4aaa-ad4d-b122a662184d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=f34e5979-57d9-4aaa-ad4d-b122a662184d;Ip=[63.35.35.123];Helo=[64aa7808-outbound-1.mta.getcheckrecipient.com] X-MS-Exchange-CrossTenant-AuthSource: DB1PEPF000509E3.eurprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: PR3PR08MB5594 X-Spam-Status: No, score=-11.0 required=5.0 tests=BAYES_00,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FORGED_SPF_HELO,GIT_PATCH_0,RCVD_IN_DNSWL_NONE,RCVD_IN_MSPIKE_H2,SPF_HELO_PASS,SPF_NONE,TXREP,T_SCC_BODY_TEXT_LINE,UNPARSEABLE_RELAY autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org List-Id: Left shift of ki is undefined when ki<0, copy the logic from exp, which uses unsigned arithmetics, to fix it. --- sysdeps/ieee754/dbl-64/e_exp10.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/sysdeps/ieee754/dbl-64/e_exp10.c b/sysdeps/ieee754/dbl-64/e_exp10.c index 225fc74c4c..7ea8270063 100644 --- a/sysdeps/ieee754/dbl-64/e_exp10.c +++ b/sysdeps/ieee754/dbl-64/e_exp10.c @@ -38,7 +38,7 @@ special_case (uint64_t sbits, double_t tmp, uint64_t ki) { double_t scale, y; - if (ki - (1ull << 16) < 0x80000000) + if ((ki & 0x80000000) == 0) { /* The exponent of scale might have overflowed by 1. */ sbits -= 1ull << 52; @@ -100,14 +100,14 @@ __exp10 (double x) /* Reduce x: z = x * N / log10(2), k = round(z). */ double_t z = __exp_data.invlog10_2N * x; double_t kd; - int64_t ki; + uint64_t ki; #if TOINT_INTRINSICS kd = roundtoint (z); ki = converttoint (z); #else kd = math_narrow_eval (z + Shift); + ki = asuint64 (kd); kd -= Shift; - ki = kd; #endif /* r = x - k * log10(2), r in [-0.5, 0.5]. */ -- 2.25.1