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[PATCH v2 for-10.0 04/54] tests/fp: Explicitly set inf-zero-nan rule


From: Peter Maydell
Subject: [PATCH v2 for-10.0 04/54] tests/fp: Explicitly set inf-zero-nan rule
Date: Mon, 2 Dec 2024 13:12:57 +0000

Explicitly set a rule in the softfloat tests for the inf-zero-nan
muladd special case.  In meson.build we put -DTARGET_ARM in fpcflags,
and so we should select here the Arm rule of
float_infzeronan_dnan_if_qnan.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
---
 tests/fp/fp-bench.c | 5 +++++
 tests/fp/fp-test.c  | 5 +++++
 2 files changed, 10 insertions(+)

diff --git a/tests/fp/fp-bench.c b/tests/fp/fp-bench.c
index 75c07d5d1f1..fde64836194 100644
--- a/tests/fp/fp-bench.c
+++ b/tests/fp/fp-bench.c
@@ -488,7 +488,12 @@ static void run_bench(void)
 {
     bench_func_t f;
 
+    /*
+     * These implementation-defined choices for various things IEEE
+     * doesn't specify match those used by the Arm architecture.
+     */
     set_float_2nan_prop_rule(float_2nan_prop_s_ab, &soft_status);
+    set_float_infzeronan_rule(float_infzeronan_dnan_if_qnan, &soft_status);
 
     f = bench_funcs[operation][precision];
     g_assert(f);
diff --git a/tests/fp/fp-test.c b/tests/fp/fp-test.c
index 5f6f25c8821..251c278ede9 100644
--- a/tests/fp/fp-test.c
+++ b/tests/fp/fp-test.c
@@ -935,7 +935,12 @@ void run_test(void)
 {
     unsigned int i;
 
+    /*
+     * These implementation-defined choices for various things IEEE
+     * doesn't specify match those used by the Arm architecture.
+     */
     set_float_2nan_prop_rule(float_2nan_prop_s_ab, &qsf);
+    set_float_infzeronan_rule(float_infzeronan_dnan_if_qnan, &qsf);
 
     genCases_setLevel(test_level);
     verCases_maxErrorCount = n_max_errors;
-- 
2.34.1




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