Disable agressive loop optimizations warnings when compiling with lto.

2 files changed, 8 insertions, 0 deletions

diff --git a/searchlib/src/tests/sort/CMakeLists.txt b/searchlib/src/tests/sort/CMakeLists.txt
index e342237adf0..def7c0681c3 100644
--- a/searchlib/src/tests/sort/CMakeLists.txt
+++ b/searchlib/src/tests/sort/CMakeLists.txt
@@ -12,6 +12,9 @@ vespa_add_executable(searchlib_sort_test_app
     DEPENDS
     searchlib
 )
+if(CMAKE_CXX_COMPILER_ID STREQUAL "GNU" AND VESPA_USE_LTO)
+  target_link_options(searchlib_sort_test_app PRIVATE "-Wno-aggressive-loop-optimizations")
+endif()
 #vespa_add_test(NAME searchlib_sort_test_app COMMAND searchlib_sort_test_app)
 vespa_add_executable(searchlib_uca_stress_app
     SOURCES
diff --git a/searchlib/src/vespa/searchlib/common/sort.h b/searchlib/src/vespa/searchlib/common/sort.h
index b90bda698a0..4f0d285f1c7 100644
--- a/searchlib/src/vespa/searchlib/common/sort.h
+++ b/searchlib/src/vespa/searchlib/common/sort.h
@@ -233,7 +233,12 @@ void ShiftBasedRadixSorterBase<GR, T, SHIFT>::radix_fetch(GR R, size_t cnt[256],
         }
     }
     for(; p < n; p++) {
+#pragma GCC diagnostic push
+#ifndef __clang__
+#pragma GCC diagnostic ignored "-Waggressive-loop-optimizations"
+#endif
         cnt[(R(a[p]) >> SHIFT) & 0xFF]++;
+#pragma GCC diagnostic pop
     }
 }