From 29ca428ffa753a300b880ee11e132ead54f4dbb7 Mon Sep 17 00:00:00 2001
From: Ralf Jung <post@ralfj.de>
Date: Fri, 9 Aug 2019 11:18:17 +0200
Subject: [PATCH] Miri is really slow

---
 src/libcore/tests/num/dec2flt/mod.rs       | 1 +
 src/libcore/tests/num/flt2dec/estimator.rs | 2 +-
 src/libcore/tests/num/flt2dec/random.rs    | 6 +++---
 3 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/src/libcore/tests/num/dec2flt/mod.rs b/src/libcore/tests/num/dec2flt/mod.rs
index 0e71426c641..46eacb4200a 100644
--- a/src/libcore/tests/num/dec2flt/mod.rs
+++ b/src/libcore/tests/num/dec2flt/mod.rs
@@ -77,6 +77,7 @@ fn infinity() {
 fn zero() {
     test_literal!(0.0);
     test_literal!(1e-325);
+    #[cfg(not(miri))] // Miri is too slow
     test_literal!(1e-326);
     #[cfg(not(miri))] // Miri is too slow
     test_literal!(1e-500);
diff --git a/src/libcore/tests/num/flt2dec/estimator.rs b/src/libcore/tests/num/flt2dec/estimator.rs
index 50fe61b5e22..c51451708f3 100644
--- a/src/libcore/tests/num/flt2dec/estimator.rs
+++ b/src/libcore/tests/num/flt2dec/estimator.rs
@@ -45,7 +45,7 @@ fn test_estimate_scaling_factor() {
     #[cfg(not(miri))] // Miri is too slow
     let iter = -1074..972;
     #[cfg(miri)]
-    let iter = (-1074..972).step_by(11);
+    let iter = (-1074..972).step_by(37);
 
     for i in iter {
         let expected = super::ldexp_f64(1.0, i).log10().ceil();
diff --git a/src/libcore/tests/num/flt2dec/random.rs b/src/libcore/tests/num/flt2dec/random.rs
index 3db5b4c84fc..d9543793397 100644
--- a/src/libcore/tests/num/flt2dec/random.rs
+++ b/src/libcore/tests/num/flt2dec/random.rs
@@ -112,7 +112,7 @@ fn shortest_random_equivalence_test() {
     #[cfg(not(miri))] // Miri is too slow
     const N: usize = 10_000;
     #[cfg(miri)]
-    const N: usize = 20;
+    const N: usize = 10;
 
     f64_random_equivalence_test(format_shortest_opt, fallback, MAX_SIG_DIGITS, N);
     f32_random_equivalence_test(format_shortest_opt, fallback, MAX_SIG_DIGITS, N);
@@ -146,7 +146,7 @@ fn exact_f32_random_equivalence_test() {
     #[cfg(not(miri))] // Miri is too slow
     const N: usize = 1_000;
     #[cfg(miri)]
-    const N: usize = 10;
+    const N: usize = 3;
 
     for k in 1..21 {
         f32_random_equivalence_test(|d, buf| format_exact_opt(d, buf, i16::MIN),
@@ -160,7 +160,7 @@ fn exact_f64_random_equivalence_test() {
     #[cfg(not(miri))] // Miri is too slow
     const N: usize = 1_000;
     #[cfg(miri)]
-    const N: usize = 5;
+    const N: usize = 3;
 
     for k in 1..21 {
         f64_random_equivalence_test(|d, buf| format_exact_opt(d, buf, i16::MIN),
-- 
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