Fix warning about comparison of integer expressions of different signedness (#53658)

(cherry picked from commit 5fc1662)

Author: giordano

src/flisp/julia_extensions.c

@@ -405,7 +405,7 @@ value_t fl_string_only_julia_char(fl_context_t *fl_ctx, value_t *args, uint32_t
     uint8_t *s = (uint8_t*)cvalue_data(args[0]);
     size_t len = cv_len((cvalue_t*)ptr(args[0]));
     uint32_t u = _string_only_julia_char(s, len);
-    if (u == (uint32_t)-1)
+    if (u == UINT32_MAX)
         return fl_ctx->F;
     return fl_list2(fl_ctx, fl_ctx->jl_char_sym, mk_uint32(fl_ctx, u));
 }

src/llvm-multiversioning.cpp

@@ -755,7 +755,7 @@ std::pair<uint32_t,GlobalVariable*> CloneCtx::get_reloc_slot(Function *F) const
     if (F->isDeclaration()) {
         auto extern_decl = extern_relocs.find(F);
         assert(extern_decl != extern_relocs.end() && "Missing extern relocation slot!");
-        return {(uint32_t)-1, extern_decl->second};
+        return {UINT32_MAX, extern_decl->second};
     }
     else {
         auto id = get_func_id(F);

src/processor.cpp

@@ -385,7 +385,7 @@ JL_UNUSED static uint32_t find_feature_bit(const FeatureName *features, size_t n
             return feature.bit;
         }
     }
-    return (uint32_t)-1;
+    return UINT32_MAX;
 }
 
 // This is how we save the target identification.
@@ -633,7 +633,7 @@ static inline jl_image_t parse_sysimg(void *hdl, F &&callback)
     jl_value_t* rejection_reason = nullptr;
     JL_GC_PUSH1(&rejection_reason);
     uint32_t target_idx = callback(ids, &rejection_reason);
-    if (target_idx == (uint32_t)-1) {
+    if (target_idx == UINT32_MAX) {
         jl_error(jl_string_ptr(rejection_reason));
     }
     JL_GC_POP();
@@ -851,7 +851,7 @@ static inline void check_cmdline(T &&cmdline, bool imaging)
 }
 
 struct SysimgMatch {
-    uint32_t best_idx{(uint32_t)-1};
+    uint32_t best_idx{UINT32_MAX};
     int vreg_size{0};
 };
 
@@ -906,7 +906,7 @@ static inline SysimgMatch match_sysimg_targets(S &&sysimg, T &&target, F &&max_v
         feature_size = new_feature_size;
         rejection_reasons.push_back("Updating best match to this target\n");
     }
-    if (match.best_idx == (uint32_t)-1) {
+    if (match.best_idx == UINT32_MAX) {
         // Construct a nice error message for debugging purposes
         std::string error_msg = "Unable to find compatible target in cached code image.\n";
         for (size_t i = 0; i < rejection_reasons.size(); i++) {

src/processor_arm.cpp

@@ -203,7 +203,7 @@ static constexpr auto feature_masks = get_feature_masks(
 #undef JL_FEATURE_DEF
     -1);
 static const auto real_feature_masks =
-    feature_masks & FeatureList<feature_sz>{{(uint32_t)-1, (uint32_t)-1, 0}};
+    feature_masks & FeatureList<feature_sz>{{UINT32_MAX, UINT32_MAX, 0}};
 
 namespace Feature {
 enum : uint32_t {
@@ -461,7 +461,7 @@ static constexpr auto feature_masks = get_feature_masks(
 #undef JL_FEATURE_DEF
     -1);
 static const auto real_feature_masks =
-    feature_masks & FeatureList<feature_sz>{{(uint32_t)-1, (uint32_t)-1, 0}};
+    feature_masks & FeatureList<feature_sz>{{UINT32_MAX, UINT32_MAX, 0}};
 
 namespace Feature {
 enum : uint32_t {
@@ -1493,7 +1493,7 @@ static const std::vector<TargetData<feature_sz>> &get_cmdline_targets(void)
         }
 #endif
         auto fbit = find_feature_bit(feature_names, nfeature_names, str, len);
-        if (fbit == (uint32_t)-1)
+        if (fbit == UINT32_MAX)
             return false;
         set_bit(list, fbit, true);
         return true;
@@ -1574,7 +1574,7 @@ static uint32_t sysimg_init_cb(const void *id, jl_value_t **rejection_reason)
         }
     }
     auto match = match_sysimg_targets(sysimg, target, max_vector_size, rejection_reason);
-    if (match.best_idx == -1)
+    if (match.best_idx == UINT32_MAX)
         return match.best_idx;
     // Now we've decided on which sysimg version to use.
     // Make sure the JIT target is compatible with it and save the JIT target.
@@ -1846,7 +1846,7 @@ JL_DLLEXPORT jl_value_t* jl_check_pkgimage_clones(char *data)
     JL_GC_PUSH1(&rejection_reason);
     uint32_t match_idx = pkgimg_init_cb(data, &rejection_reason);
     JL_GC_POP();
-    if (match_idx == (uint32_t)-1)
+    if (match_idx == UINT32_MAX)
         return rejection_reason;
     return jl_nothing;
 }

src/processor_fallback.cpp

@@ -189,7 +189,7 @@ JL_DLLEXPORT jl_value_t* jl_check_pkgimage_clones(char *data)
     JL_GC_PUSH1(&rejection_reason);
     uint32_t match_idx = pkgimg_init_cb(data, &rejection_reason);
     JL_GC_POP();
-    if (match_idx == (uint32_t)-1)
+    if (match_idx == UINT32_MAX)
         return rejection_reason;
     return jl_nothing;
 }

src/processor_x86.cpp

@@ -776,7 +776,7 @@ static const std::vector<TargetData<feature_sz>> &get_cmdline_targets(void)
 {
     auto feature_cb = [] (const char *str, size_t len, FeatureList<feature_sz> &list) {
         auto fbit = find_feature_bit(feature_names, nfeature_names, str, len);
-        if (fbit == (uint32_t)-1)
+        if (fbit == UINT32_MAX)
             return false;
         set_bit(list, fbit, true);
         return true;
@@ -870,7 +870,7 @@ static uint32_t sysimg_init_cb(const void *id, jl_value_t** rejection_reason)
                  "https://docs.julialang.org/en/v1/devdocs/sysimg/ for more.");
     }
     auto match = match_sysimg_targets(sysimg, target, max_vector_size, rejection_reason);
-    if (match.best_idx == (uint32_t)-1)
+    if (match.best_idx == UINT32_MAX)
         return match.best_idx;
     // Now we've decided on which sysimg version to use.
     // Make sure the JIT target is compatible with it and save the JIT target.
@@ -1041,7 +1041,7 @@ JL_DLLEXPORT jl_value_t* jl_check_pkgimage_clones(char *data)
     JL_GC_PUSH1(&rejection_reason);
     uint32_t match_idx = pkgimg_init_cb(data, &rejection_reason);
     JL_GC_POP();
-    if (match_idx == (uint32_t)-1)
+    if (match_idx == UINT32_MAX)
         return rejection_reason;
     return jl_nothing;
 }

src/support/utf8.h

@@ -12,7 +12,7 @@ extern "C" {
 /* is c the start of a utf8 sequence? */
 #define isutf(c) (((c)&0xC0)!=0x80)
 
-#define UEOF ((uint32_t)-1)
+#define UEOF (UINT32_MAX)
 
 /* convert UTF-8 data to wide character */
 size_t u8_toucs(uint32_t *dest, size_t sz, const char *src, size_t srcsz);