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From: Max Filippov <jcmvbkbc@gmail.com>
To: qemu-devel@nongnu.org
Cc: Max Filippov <jcmvbkbc@gmail.com>
Subject: [PATCH v3 13/21] tests/tcg/xtensa: expand madd tests
Date: Wed,  8 Jul 2020 15:20:53 -0700	[thread overview]
Message-ID: <20200708222101.24568-14-jcmvbkbc@gmail.com> (raw)
In-Reply-To: <20200708222101.24568-1-jcmvbkbc@gmail.com>

Test that madd doesn't do rounding after multiplication.
Test NaN propagation rules for FPU2000 and DFPU madd opcode.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
---
Changes v2->v3:
- add more infzero tests for FPU2000 and DFPU

 tests/tcg/xtensa/test_fp0_arith.S | 104 ++++++++++++++++++++++++++++++
 1 file changed, 104 insertions(+)

diff --git a/tests/tcg/xtensa/test_fp0_arith.S b/tests/tcg/xtensa/test_fp0_arith.S
index df870eb7a013..7eefc1da409d 100644
--- a/tests/tcg/xtensa/test_fp0_arith.S
+++ b/tests/tcg/xtensa/test_fp0_arith.S
@@ -146,6 +146,110 @@ test madd_s
              FSR_I,      FSR_I,      FSR_I,      FSR_I
 test_end
 
+test madd_s_precision
+    test_op3 madd.s, f0, f1, f2, f0, 0xbf800002, 0x3f800001, 0x3f800001, \
+        0x28800000, 0x28800000, 0x28800000, 0x28800000, \
+             FSR__,      FSR__,      FSR__,      FSR__
+test_end
+
+#if DFPU
+test madd_s_nan_dfpu
+    /* DFPU madd/msub NaN1, NaN2, NaN3 priority: NaN1, NaN3, NaN2 */
+    test_op3 madd.s, f0, f1, f2, f0, F32_QNAN(1), F32_1, F32_1, \
+        F32_QNAN(1), F32_QNAN(1), F32_QNAN(1), F32_QNAN(1), \
+              FSR__,       FSR__,       FSR__,       FSR__
+    test_op3 madd.s, f0, f1, f2, f0, F32_1, F32_QNAN(2), F32_1, \
+        F32_QNAN(2), F32_QNAN(2), F32_QNAN(2), F32_QNAN(2), \
+              FSR__,       FSR__,       FSR__,       FSR__
+    test_op3 madd.s, f0, f1, f2, f0, F32_1, F32_1, F32_QNAN(3), \
+        F32_QNAN(3), F32_QNAN(3), F32_QNAN(3), F32_QNAN(3), \
+              FSR__,       FSR__,       FSR__,       FSR__
+
+    test_op3 madd.s, f0, f1, f2, f0, F32_QNAN(1), F32_QNAN(2), F32_1, \
+        F32_QNAN(1), F32_QNAN(1), F32_QNAN(1), F32_QNAN(1), \
+              FSR__,       FSR__,       FSR__,       FSR__
+    test_op3 madd.s, f0, f1, f2, f0, F32_QNAN(1), F32_1, F32_QNAN(3), \
+        F32_QNAN(1), F32_QNAN(1), F32_QNAN(1), F32_QNAN(1), \
+              FSR__,       FSR__,       FSR__,       FSR__
+    test_op3 madd.s, f0, f1, f2, f0, F32_1, F32_QNAN(2), F32_QNAN(3), \
+        F32_QNAN(3), F32_QNAN(3), F32_QNAN(3), F32_QNAN(3), \
+              FSR__,       FSR__,       FSR__,       FSR__
+
+    test_op3 madd.s, f0, f1, f2, f0, F32_QNAN(1), F32_QNAN(2), F32_QNAN(3), \
+        F32_QNAN(1), F32_QNAN(1), F32_QNAN(1), F32_QNAN(1), \
+              FSR__,       FSR__,       FSR__,       FSR__
+
+    /* inf * 0 = default NaN */
+    test_op3 madd.s, f0, f1, f2, f0, F32_1, F32_PINF, F32_0, \
+        F32_DNAN, F32_DNAN, F32_DNAN, F32_DNAN, \
+           FSR_V,    FSR_V,    FSR_V,    FSR_V
+    /* inf * 0 + SNaN1 = QNaN1 */
+    test_op3 madd.s, f0, f1, f2, f0, F32_SNAN(1), F32_PINF, F32_0, \
+        F32_QNAN(1), F32_QNAN(1), F32_QNAN(1), F32_QNAN(1), \
+              FSR_V,       FSR_V,       FSR_V,       FSR_V
+    /* inf * 0 + QNaN1 = QNaN1 */
+    test_op3 madd.s, f0, f1, f2, f0, F32_QNAN(1), F32_PINF, F32_0, \
+        F32_QNAN(1), F32_QNAN(1), F32_QNAN(1), F32_QNAN(1), \
+              FSR_V,       FSR_V,       FSR_V,       FSR_V
+
+    /* madd/msub SNaN turns to QNaN and sets Invalid flag */
+    test_op3 madd.s, f0, f1, f2, f0, F32_SNAN(1), F32_1, F32_1, \
+        F32_QNAN(1), F32_QNAN(1), F32_QNAN(1), F32_QNAN(1), \
+              FSR_V,       FSR_V,       FSR_V,       FSR_V
+    test_op3 madd.s, f0, f1, f2, f0, F32_QNAN(1), F32_SNAN(2), F32_1, \
+        F32_QNAN(1), F32_QNAN(1), F32_QNAN(1), F32_QNAN(1), \
+              FSR_V,       FSR_V,       FSR_V,       FSR_V
+test_end
+#else
+test madd_s_nan_fpu2k
+    /* FPU2000 madd/msub NaN1, NaN2, NaN3 priority: NaN2, NaN3, NaN1 */
+    test_op3 madd.s, f0, f1, f2, f0, F32_QNAN(1), F32_1, F32_1, \
+        F32_QNAN(1), F32_QNAN(1), F32_QNAN(1), F32_QNAN(1), \
+              FSR__,       FSR__,       FSR__,       FSR__
+    test_op3 madd.s, f0, f1, f2, f0, F32_1, F32_QNAN(2), F32_1, \
+        F32_QNAN(2), F32_QNAN(2), F32_QNAN(2), F32_QNAN(2), \
+              FSR__,       FSR__,       FSR__,       FSR__
+    test_op3 madd.s, f0, f1, f2, f0, F32_1, F32_1, F32_QNAN(3), \
+        F32_QNAN(3), F32_QNAN(3), F32_QNAN(3), F32_QNAN(3), \
+              FSR__,       FSR__,       FSR__,       FSR__
+
+    test_op3 madd.s, f0, f1, f2, f0, F32_QNAN(1), F32_QNAN(2), F32_1, \
+        F32_QNAN(2), F32_QNAN(2), F32_QNAN(2), F32_QNAN(2), \
+              FSR__,       FSR__,       FSR__,       FSR__
+    test_op3 madd.s, f0, f1, f2, f0, F32_QNAN(1), F32_1, F32_QNAN(3), \
+        F32_QNAN(3), F32_QNAN(3), F32_QNAN(3), F32_QNAN(3), \
+              FSR__,       FSR__,       FSR__,       FSR__
+    test_op3 madd.s, f0, f1, f2, f0, F32_1, F32_QNAN(2), F32_QNAN(3), \
+        F32_QNAN(2), F32_QNAN(2), F32_QNAN(2), F32_QNAN(2), \
+              FSR__,       FSR__,       FSR__,       FSR__
+
+    test_op3 madd.s, f0, f1, f2, f0, F32_QNAN(1), F32_QNAN(2), F32_QNAN(3), \
+        F32_QNAN(2), F32_QNAN(2), F32_QNAN(2), F32_QNAN(2), \
+              FSR__,       FSR__,       FSR__,       FSR__
+
+    /* inf * 0 = default NaN */
+    test_op3 madd.s, f0, f1, f2, f0, F32_1, F32_PINF, F32_0, \
+        F32_DNAN, F32_DNAN, F32_DNAN, F32_DNAN, \
+           FSR__,    FSR__,    FSR__,    FSR__
+    /* inf * 0 + SNaN1 = SNaN1 */
+    test_op3 madd.s, f0, f1, f2, f0, F32_SNAN(1), F32_PINF, F32_0, \
+        F32_SNAN(1), F32_SNAN(1), F32_SNAN(1), F32_SNAN(1), \
+              FSR__,       FSR__,       FSR__,       FSR__
+    /* inf * 0 + QNaN1 = QNaN1 */
+    test_op3 madd.s, f0, f1, f2, f0, F32_QNAN(1), F32_PINF, F32_0, \
+        F32_QNAN(1), F32_QNAN(1), F32_QNAN(1), F32_QNAN(1), \
+              FSR__,       FSR__,       FSR__,       FSR__
+
+    /* madd/msub SNaN is preserved */
+    test_op3 madd.s, f0, f1, f2, f0, F32_SNAN(1), F32_1, F32_1, \
+        F32_SNAN(1), F32_SNAN(1), F32_SNAN(1), F32_SNAN(1), \
+              FSR__,       FSR__,       FSR__,       FSR__
+    test_op3 madd.s, f0, f1, f2, f0, F32_QNAN(1), F32_SNAN(2), F32_1, \
+        F32_SNAN(2), F32_SNAN(2), F32_SNAN(2), F32_SNAN(2), \
+              FSR__,       FSR__,       FSR__,       FSR__
+test_end
+#endif
+
 test msub_s
     test_op3 msub.s, f0, f1, f2, f0, 0x3f800000, 0x3f800001, 0x3f800001, \
         0xb4800000, 0xb4800000, 0xb4800000, 0xb4800001, \
-- 
2.20.1



  parent reply	other threads:[~2020-07-08 22:45 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-08 22:20 [PATCH 00/21] target/xtensa: implement double precision FPU Max Filippov
2020-07-08 22:20 ` [PATCH v3 01/21] softfloat: make NO_SIGNALING_NANS runtime property Max Filippov
2020-07-08 23:54   ` Richard Henderson
2020-07-08 22:20 ` [PATCH v3 02/21] softfloat: pass float_status pointer to pickNaN Max Filippov
2020-07-08 23:59   ` Richard Henderson
2020-07-08 22:20 ` [PATCH v3 03/21] softfloat: add xtensa specialization for pickNaNMulAdd Max Filippov
2020-07-09  0:03   ` Richard Henderson
2020-07-08 22:20 ` [PATCH v3 04/21] target/xtensa: add geometry to xtensa_get_regfile_by_name Max Filippov
2020-07-08 22:20 ` [PATCH v3 05/21] target/xtensa: support copying registers up to 64 bits wide Max Filippov
2020-07-08 22:20 ` [PATCH v3 06/21] target/xtensa: rename FPU2000 translators and helpers Max Filippov
2020-07-08 22:20 ` [PATCH v3 07/21] target/xtensa: move FSR/FCR register accessors Max Filippov
2020-07-08 22:20 ` [PATCH v3 08/21] target/xtensa: don't access BR regfile directly Max Filippov
2020-07-08 22:20 ` [PATCH v3 09/21] target/xtensa: add DFP option, registers and opcodes Max Filippov
2020-07-08 22:20 ` [PATCH v3 10/21] target/xtensa: implement FPU division and square root Max Filippov
2020-07-08 22:20 ` [PATCH v3 11/21] tests/tcg/xtensa: fix test execution on ISS Max Filippov
2020-07-08 22:20 ` [PATCH v3 12/21] tests/tcg/xtensa: update test_fp0_arith for DFPU Max Filippov
2020-07-08 22:20 ` Max Filippov [this message]
2020-07-08 22:20 ` [PATCH v3 14/21] tests/tcg/xtensa: update test_fp0_conv " Max Filippov
2020-07-08 22:20 ` [PATCH v3 15/21] tests/tcg/xtensa: update test_fp1 " Max Filippov
2020-07-08 22:20 ` [PATCH v3 16/21] tests/tcg/xtensa: update test_lsc " Max Filippov
2020-07-08 22:20 ` [PATCH v3 17/21] tests/tcg/xtensa: add fp0 div and sqrt tests Max Filippov
2020-07-08 22:20 ` [PATCH v3 18/21] tests/tcg/xtensa: test double precision load/store Max Filippov
2020-07-08 22:20 ` [PATCH v3 19/21] tests/tcg/xtensa: add DFP0 arithmetic tests Max Filippov
2020-07-08 22:21 ` [PATCH v3 20/21] target/xtensa: import de233_fpu core Max Filippov

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