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GET /api/patches/1475748/?format=api
{ "id": 1475748, "url": "http://patchwork.ozlabs.org/api/patches/1475748/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20210508014802.892561-50-richard.henderson@linaro.org/", "project": { "id": 14, "url": "http://patchwork.ozlabs.org/api/projects/14/?format=api", "name": "QEMU Development", "link_name": "qemu-devel", "list_id": "qemu-devel.nongnu.org", "list_email": "qemu-devel@nongnu.org", "web_url": "", "scm_url": "", "webscm_url": "", "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20210508014802.892561-50-richard.henderson@linaro.org>", "list_archive_url": null, "date": "2021-05-08T01:47:39", "name": "[49/72] softfloat: Move uint_to_float to softfloat-parts.c.inc", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "5f6ddac69ece6f834b2998308e952c464f1189f8", "submitter": { "id": 72104, "url": "http://patchwork.ozlabs.org/api/people/72104/?format=api", "name": "Richard Henderson", "email": "richard.henderson@linaro.org" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20210508014802.892561-50-richard.henderson@linaro.org/mbox/", "series": [ { "id": 242770, "url": "http://patchwork.ozlabs.org/api/series/242770/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/list/?series=242770", "date": "2021-05-08T01:46:53", "name": "Convert floatx80 and float128 to FloatParts", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/242770/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/1475748/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/1475748/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": "patchwork-incoming@bilbo.ozlabs.org", "Authentication-Results": [ "ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org\n (client-ip=209.51.188.17; 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helo=mail-pg1-x533.google.com", "X-Spam_score_int": "-20", "X-Spam_score": "-2.1", "X-Spam_bar": "--", "X-Spam_report": "(-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1,\n DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1,\n RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001,\n SPF_PASS=-0.001 autolearn=ham autolearn_force=no", "X-Spam_action": "no action", "X-BeenThere": "qemu-devel@nongnu.org", "X-Mailman-Version": "2.1.23", "Precedence": "list", "List-Id": "<qemu-devel.nongnu.org>", "List-Unsubscribe": "<https://lists.nongnu.org/mailman/options/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>", "List-Archive": "<https://lists.nongnu.org/archive/html/qemu-devel>", "List-Post": "<mailto:qemu-devel@nongnu.org>", "List-Help": "<mailto:qemu-devel-request@nongnu.org?subject=help>", "List-Subscribe": "<https://lists.nongnu.org/mailman/listinfo/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=subscribe>", "Cc": "alex.bennee@linaro.org, david@redhat.com", "Errors-To": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org", "Sender": "\"Qemu-devel\"\n <qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>" }, "content": "Rename to parts$N_uint_to_float.\nReimplement uint64_to_float128 with FloatParts128.\n\nSigned-off-by: Richard Henderson <richard.henderson@linaro.org>\n---\n fpu/softfloat.c | 83 ++++++++++++++++-----------------------\n fpu/softfloat-parts.c.inc | 23 +++++++++++\n 2 files changed, 56 insertions(+), 50 deletions(-)", "diff": "diff --git a/fpu/softfloat.c b/fpu/softfloat.c\nindex d843ea67c4..586ea5d67a 100644\n--- a/fpu/softfloat.c\n+++ b/fpu/softfloat.c\n@@ -856,6 +856,14 @@ static void parts128_sint_to_float(FloatParts128 *p, int64_t a,\n #define parts_sint_to_float(P, I, Z, S) \\\n PARTS_GENERIC_64_128(sint_to_float, P)(P, I, Z, S)\n \n+static void parts64_uint_to_float(FloatParts64 *p, uint64_t a,\n+ int scale, float_status *s);\n+static void parts128_uint_to_float(FloatParts128 *p, uint64_t a,\n+ int scale, float_status *s);\n+\n+#define parts_uint_to_float(P, I, Z, S) \\\n+ PARTS_GENERIC_64_128(uint_to_float, P)(P, I, Z, S)\n+\n /*\n * Helper functions for softfloat-parts.c.inc, per-size operations.\n */\n@@ -3101,35 +3109,15 @@ float128 int32_to_float128(int32_t a, float_status *status)\n }\n \n /*\n- * Unsigned Integer to float conversions\n- *\n- * Returns the result of converting the unsigned integer `a' to the\n- * floating-point format. The conversion is performed according to the\n- * IEC/IEEE Standard for Binary Floating-Point Arithmetic.\n+ * Unsigned Integer to floating-point conversions\n */\n \n-static FloatParts64 uint_to_float(uint64_t a, int scale, float_status *status)\n-{\n- FloatParts64 r = { .sign = false };\n- int shift;\n-\n- if (a == 0) {\n- r.cls = float_class_zero;\n- } else {\n- scale = MIN(MAX(scale, -0x10000), 0x10000);\n- shift = clz64(a);\n- r.cls = float_class_normal;\n- r.exp = DECOMPOSED_BINARY_POINT - shift + scale;\n- r.frac = a << shift;\n- }\n-\n- return r;\n-}\n-\n float16 uint64_to_float16_scalbn(uint64_t a, int scale, float_status *status)\n {\n- FloatParts64 pa = uint_to_float(a, scale, status);\n- return float16_round_pack_canonical(&pa, status);\n+ FloatParts64 p;\n+\n+ parts_uint_to_float(&p, a, scale, status);\n+ return float16_round_pack_canonical(&p, status);\n }\n \n float16 uint32_to_float16_scalbn(uint32_t a, int scale, float_status *status)\n@@ -3164,8 +3152,10 @@ float16 uint8_to_float16(uint8_t a, float_status *status)\n \n float32 uint64_to_float32_scalbn(uint64_t a, int scale, float_status *status)\n {\n- FloatParts64 pa = uint_to_float(a, scale, status);\n- return float32_round_pack_canonical(&pa, status);\n+ FloatParts64 p;\n+\n+ parts_uint_to_float(&p, a, scale, status);\n+ return float32_round_pack_canonical(&p, status);\n }\n \n float32 uint32_to_float32_scalbn(uint32_t a, int scale, float_status *status)\n@@ -3195,8 +3185,10 @@ float32 uint16_to_float32(uint16_t a, float_status *status)\n \n float64 uint64_to_float64_scalbn(uint64_t a, int scale, float_status *status)\n {\n- FloatParts64 pa = uint_to_float(a, scale, status);\n- return float64_round_pack_canonical(&pa, status);\n+ FloatParts64 p;\n+\n+ parts_uint_to_float(&p, a, scale, status);\n+ return float64_round_pack_canonical(&p, status);\n }\n \n float64 uint32_to_float64_scalbn(uint32_t a, int scale, float_status *status)\n@@ -3224,15 +3216,12 @@ float64 uint16_to_float64(uint16_t a, float_status *status)\n return uint64_to_float64_scalbn(a, 0, status);\n }\n \n-/*\n- * Returns the result of converting the unsigned integer `a' to the\n- * bfloat16 format.\n- */\n-\n bfloat16 uint64_to_bfloat16_scalbn(uint64_t a, int scale, float_status *status)\n {\n- FloatParts64 pa = uint_to_float(a, scale, status);\n- return bfloat16_round_pack_canonical(&pa, status);\n+ FloatParts64 p;\n+\n+ parts_uint_to_float(&p, a, scale, status);\n+ return bfloat16_round_pack_canonical(&p, status);\n }\n \n bfloat16 uint32_to_bfloat16_scalbn(uint32_t a, int scale, float_status *status)\n@@ -3260,6 +3249,14 @@ bfloat16 uint16_to_bfloat16(uint16_t a, float_status *status)\n return uint64_to_bfloat16_scalbn(a, 0, status);\n }\n \n+float128 uint64_to_float128(uint64_t a, float_status *status)\n+{\n+ FloatParts128 p;\n+\n+ parts_uint_to_float(&p, a, 0, status);\n+ return float128_round_pack_canonical(&p, status);\n+}\n+\n /* Float Min/Max */\n /* min() and max() functions. These can't be implemented as\n * 'compare and pick one input' because that would mishandle\n@@ -4971,20 +4968,6 @@ floatx80 int64_to_floatx80(int64_t a, float_status *status)\n \n }\n \n-/*----------------------------------------------------------------------------\n-| Returns the result of converting the 64-bit unsigned integer `a'\n-| to the quadruple-precision floating-point format. The conversion is performed\n-| according to the IEC/IEEE Standard for Binary Floating-Point Arithmetic.\n-*----------------------------------------------------------------------------*/\n-\n-float128 uint64_to_float128(uint64_t a, float_status *status)\n-{\n- if (a == 0) {\n- return float128_zero;\n- }\n- return normalizeRoundAndPackFloat128(0, 0x406E, 0, a, status);\n-}\n-\n /*----------------------------------------------------------------------------\n | Returns the result of converting the single-precision floating-point value\n | `a' to the extended double-precision floating-point format. The conversion\ndiff --git a/fpu/softfloat-parts.c.inc b/fpu/softfloat-parts.c.inc\nindex 8102de1307..f3c4f8c8d2 100644\n--- a/fpu/softfloat-parts.c.inc\n+++ b/fpu/softfloat-parts.c.inc\n@@ -913,3 +913,26 @@ static void partsN(sint_to_float)(FloatPartsN *p, int64_t a,\n p->exp = DECOMPOSED_BINARY_POINT - shift + scale;\n p->frac_hi = f << shift;\n }\n+\n+/*\n+ * Unsigned Integer to float conversions\n+ *\n+ * Returns the result of converting the unsigned integer `a' to the\n+ * floating-point format. The conversion is performed according to the\n+ * IEC/IEEE Standard for Binary Floating-Point Arithmetic.\n+ */\n+static void partsN(uint_to_float)(FloatPartsN *p, uint64_t a,\n+ int scale, float_status *status)\n+{\n+ memset(p, 0, sizeof(*p));\n+\n+ if (a == 0) {\n+ p->cls = float_class_zero;\n+ } else {\n+ int shift = clz64(a);\n+ scale = MIN(MAX(scale, -0x10000), 0x10000);\n+ p->cls = float_class_normal;\n+ p->exp = DECOMPOSED_BINARY_POINT - shift + scale;\n+ p->frac_hi = a << shift;\n+ }\n+}\n", "prefixes": [ "49/72" ] }