diff --git a/src/tint/writer/glsl/generator_impl.cc b/src/tint/writer/glsl/generator_impl.cc
index 1cf74807d1..ccce06a89a 100644
--- a/src/tint/writer/glsl/generator_impl.cc
+++ b/src/tint/writer/glsl/generator_impl.cc
@@ -2183,13 +2183,14 @@ bool GeneratorImpl::EmitLiteral(std::ostream& out, const ast::LiteralExpression*
             return true;
         },
         [&](const ast::FloatLiteralExpression* l) {
-            if (std::isinf(l->value)) {
+            auto f32 = static_cast<float>(l->value);
+            if (std::isinf(f32)) {
                 out << (l->value >= 0 ? "uintBitsToFloat(0x7f800000u)"
                                       : "uintBitsToFloat(0xff800000u)");
             } else if (std::isnan(l->value)) {
                 out << "uintBitsToFloat(0x7fc00000u)";
             } else {
-                out << FloatToString(static_cast<float>(l->value)) << "f";
+                out << FloatToString(f32) << "f";
             }
             return true;
         },
diff --git a/src/tint/writer/hlsl/generator_impl.cc b/src/tint/writer/hlsl/generator_impl.cc
index 344d0d87c8..d6a5fa7549 100644
--- a/src/tint/writer/hlsl/generator_impl.cc
+++ b/src/tint/writer/hlsl/generator_impl.cc
@@ -3139,13 +3139,14 @@ bool GeneratorImpl::EmitLiteral(std::ostream& out, const ast::LiteralExpression*
             out << (l->value ? "true" : "false");
             return true;
         },
-        [&](const ast::FloatLiteralExpression* fl) {
-            if (std::isinf(fl->value)) {
-                out << (fl->value >= 0 ? "asfloat(0x7f800000u)" : "asfloat(0xff800000u)");
-            } else if (std::isnan(fl->value)) {
+        [&](const ast::FloatLiteralExpression* l) {
+            auto f32 = static_cast<float>(l->value);
+            if (std::isinf(f32)) {
+                out << (f32 >= 0 ? "asfloat(0x7f800000u)" : "asfloat(0xff800000u)");
+            } else if (std::isnan(f32)) {
                 out << "asfloat(0x7fc00000u)";
             } else {
-                out << FloatToString(static_cast<float>(fl->value)) << "f";
+                out << FloatToString(f32) << "f";
             }
             return true;
         },
diff --git a/src/tint/writer/msl/generator_impl.cc b/src/tint/writer/msl/generator_impl.cc
index be94e2c9fe..54d9164823 100644
--- a/src/tint/writer/msl/generator_impl.cc
+++ b/src/tint/writer/msl/generator_impl.cc
@@ -1544,12 +1544,13 @@ bool GeneratorImpl::EmitLiteral(std::ostream& out, const ast::LiteralExpression*
             return true;
         },
         [&](const ast::FloatLiteralExpression* l) {
-            if (std::isinf(l->value)) {
-                out << (l->value >= 0 ? "INFINITY" : "-INFINITY");
-            } else if (std::isnan(l->value)) {
+            auto f32 = static_cast<float>(l->value);
+            if (std::isinf(f32)) {
+                out << (f32 >= 0 ? "INFINITY" : "-INFINITY");
+            } else if (std::isnan(f32)) {
                 out << "NAN";
             } else {
-                out << FloatToString(static_cast<float>(l->value)) << "f";
+                out << FloatToString(f32) << "f";
             }
             return true;
         },