From a6ca76cdf2a3d0aef091e3d26d7c6c8ee9c88e72 Mon Sep 17 00:00:00 2001
From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com>
Date: Wed, 28 Jun 2023 07:45:57 +0100
Subject: [PATCH 1/2] Avoid `-Wmaybe-uninitialized` when compiling with `gcc
 -O1`

---
 src/ecmult_impl.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/ecmult_impl.h b/src/ecmult_impl.h
index f4624677d7..6d14c7ac4b 100644
--- a/src/ecmult_impl.h
+++ b/src/ecmult_impl.h
@@ -288,7 +288,9 @@ static void secp256k1_ecmult_strauss_wnaf(const struct secp256k1_strauss_state *
     }
 
     /* Bring them to the same Z denominator. */
-    secp256k1_ge_table_set_globalz(ECMULT_TABLE_SIZE(WINDOW_A) * no, state->pre_a, state->aux);
+    if (no) {
+        secp256k1_ge_table_set_globalz(ECMULT_TABLE_SIZE(WINDOW_A) * no, state->pre_a, state->aux);
+    }
 
     for (np = 0; np < no; ++np) {
         for (i = 0; i < ECMULT_TABLE_SIZE(WINDOW_A); i++) {

From 5b9f37f136620b9c61cd66439904b2db266fba70 Mon Sep 17 00:00:00 2001
From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com>
Date: Wed, 28 Jun 2023 07:46:40 +0100
Subject: [PATCH 2/2] ci: Add `CFLAGS: -O1` to task matrix

---
 .cirrus.yml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/.cirrus.yml b/.cirrus.yml
index 5a00b65a33..a28b747ed0 100644
--- a/.cirrus.yml
+++ b/.cirrus.yml
@@ -86,6 +86,7 @@ task:
     - env: {BUILD: distcheck, WITH_VALGRIND: no, CTIMETESTS: no, BENCH: no}
     - env: {CPPFLAGS: -DDETERMINISTIC}
     - env: {CFLAGS: -O0, CTIMETESTS: no}
+    - env: {CFLAGS: -O1, RECOVERY: yes, ECDH: yes, SCHNORRSIG: yes, ELLSWIFT: yes}
     - env: { ECMULTGENPRECISION: 2, ECMULTWINDOW: 2 }
     - env: { ECMULTGENPRECISION: 8, ECMULTWINDOW: 4 }
   matrix: